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Read the following text and answer the following questions on the basis of the same:
Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).
A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?
- a)The piece of wood will take more time to come out from the pipe.
- b)The bar magnet will take more time to come out from the pipe.
- c)Both will take same time to come out from the pipe.
- d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.
Correct answer is option 'B'. Can you explain this answer?
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When a piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe, the bar magnet will take more time to come out from the pipe due to electromagnetic damping.
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Explanation of the Answer
The scenario involves dropping a piece of wood and a bar magnet through an aluminum pipe, which generates eddy currents due to its conductive properties. Here’s a detailed explanation of why the bar magnet takes more time to exit the pipe compared to the piece of wood.
Understanding Eddy Currents
- Eddy currents are loops of electrical current induced within conductors by a changing magnetic field.
- When a magnet falls through an aluminum pipe, it creates a changing magnetic field that induces eddy currents in the pipe.
- These eddy currents generate a magnetic field that opposes the motion of the falling magnet (according to Lenz's Law).
Effect on the Bar Magnet
- As the bar magnet falls, the opposing force from the eddy currents significantly slows down its descent.
- This retarding force leads to a longer time taken for the magnet to exit the pipe.
Behavior of the Wooden Piece
- In contrast, wood is an insulator and does not conduct electricity.
- When the wooden piece is dropped through the aluminum pipe, it does not generate any eddy currents.
- Hence, it falls freely under the influence of gravity without any opposing forces.
Conclusion
- Since the wooden piece experiences no resistance from eddy currents, it will exit the pipe much faster than the bar magnet.
- Therefore, the correct statement is that the bar magnet will take more time to come out of the pipe, making option 'B' the correct answer.
The scenario involves dropping a piece of wood and a bar magnet through an aluminum pipe, which generates eddy currents due to its conductive properties. Here’s a detailed explanation of why the bar magnet takes more time to exit the pipe compared to the piece of wood.
Understanding Eddy Currents
- Eddy currents are loops of electrical current induced within conductors by a changing magnetic field.
- When a magnet falls through an aluminum pipe, it creates a changing magnetic field that induces eddy currents in the pipe.
- These eddy currents generate a magnetic field that opposes the motion of the falling magnet (according to Lenz's Law).
Effect on the Bar Magnet
- As the bar magnet falls, the opposing force from the eddy currents significantly slows down its descent.
- This retarding force leads to a longer time taken for the magnet to exit the pipe.
Behavior of the Wooden Piece
- In contrast, wood is an insulator and does not conduct electricity.
- When the wooden piece is dropped through the aluminum pipe, it does not generate any eddy currents.
- Hence, it falls freely under the influence of gravity without any opposing forces.
Conclusion
- Since the wooden piece experiences no resistance from eddy currents, it will exit the pipe much faster than the bar magnet.
- Therefore, the correct statement is that the bar magnet will take more time to come out of the pipe, making option 'B' the correct answer.
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Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer?
Question Description
Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer?.
Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Read the following text and answer the following questions on the basis of the same:Electromagnetic damping: Take two hollow thin cylindrical pipes of equal internal diameters made of aluminium and PVC, respectively. Fix them vertically with clamps on retort stands. Take a small cylindrical magnet having diameter slightly smaller than the inner diameter of the pipes and drop it through each pipe in such a way that the magnet does not touch the sides of the pipes during its fall. You will observe that the magnet dropped through the PVC pipe takes the same time to come out of the pipe as it would take when dropped through the same height without the pipe. Now instead of PVC pipe use an aluminium pipe. Note the time it takes to come out of the pipe in each case. You will see that the magnet takes much longer time in the case of aluminium pipe. Why is it so ? It is due to the eddy currents that are generated in the aluminium pipe which oppose the change in magnetic flux, i.e., the motion of the magnet. The retarding force due to the eddy currents inhibits the motion of the magnet. Such phenomena are referred to as electromagnetic damping. Note that eddy currents are not generated in PVC pipe as its material is an insulator whereas aluminium is a conductor. This effect was discovered by physicist Foucault (1819-1868).A piece of wood and a bar magnet of same dimension is dropped through an aluminium pipe. Which of the following statements is true?a)The piece of wood will take more time to come out from the pipe.b)The bar magnet will take more time to come out from the pipe.c)Both will take same time to come out from the pipe.d)The time required will depend on the mass of the wooden piece and the mass of the bar magnet.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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