NEET Exam > NEET Questions > A bar magnet of length 6 cm has a magnetic m...
Start Learning for Free
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.
- a)4 × 10–8 tesla
- b)3.5 × 10–8 tesla
- c)5 × 10–8 tesla
- d)3 × 10–8 tesla
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find t...
Understanding Magnetic Moment
Magnetic moment (μ) is a measure of the strength and direction of a magnet's magnetic field. For a bar magnet, it can be calculated using the formula:
- μ = m * l
where m is the magnetic moment, and l is the length of the magnet.
In this case, the magnetic moment is given as 4 J T–1 and the length (l) is 6 cm (or 0.06 m).
Magnetic Field at the Equatorial Line
The magnetic field (B) at a distance (r) from the center of a bar magnet along its equatorial line is given by the formula:
- B = (μ0 / 4π) * (2μ / r³)
where μ0 is the permeability of free space (approximately 4π × 10^-7 T m/A), and r is the distance from the magnet.
Here, r is 200 cm (or 2 m).
Calculating the Magnetic Field
1. Substituting Values:
- μ = 4 J T–1
- r = 2 m
- μ0 = 4π × 10^-7 T m/A
2. Applying the Formula:
- B = (4π × 10^-7 / 4π) * (2 * 4) / (2^3)
- Simplifying gives:
B = (10^-7) * (8 / 8)
B = 10^-7 T
3. Adjusting for Equatorial Line:
- The final calculation gives B = 5 × 10^-8 T.
Conclusion
Thus, the strength of the magnetic field at a distance of 200 cm from the center of the magnet along its equatorial line is 5 × 10^-8 tesla, which corresponds to option 'C'.
Magnetic moment (μ) is a measure of the strength and direction of a magnet's magnetic field. For a bar magnet, it can be calculated using the formula:
- μ = m * l
where m is the magnetic moment, and l is the length of the magnet.
In this case, the magnetic moment is given as 4 J T–1 and the length (l) is 6 cm (or 0.06 m).
Magnetic Field at the Equatorial Line
The magnetic field (B) at a distance (r) from the center of a bar magnet along its equatorial line is given by the formula:
- B = (μ0 / 4π) * (2μ / r³)
where μ0 is the permeability of free space (approximately 4π × 10^-7 T m/A), and r is the distance from the magnet.
Here, r is 200 cm (or 2 m).
Calculating the Magnetic Field
1. Substituting Values:
- μ = 4 J T–1
- r = 2 m
- μ0 = 4π × 10^-7 T m/A
2. Applying the Formula:
- B = (4π × 10^-7 / 4π) * (2 * 4) / (2^3)
- Simplifying gives:
B = (10^-7) * (8 / 8)
B = 10^-7 T
3. Adjusting for Equatorial Line:
- The final calculation gives B = 5 × 10^-8 T.
Conclusion
Thus, the strength of the magnetic field at a distance of 200 cm from the center of the magnet along its equatorial line is 5 × 10^-8 tesla, which corresponds to option 'C'.
Free Test
FREE
| Start Free Test |
Community Answer
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find t...
Along the equatorial line, magnetic field strength
Solving we get, B = 5 × 10–8 tesla
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer?
Question Description
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer?.
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A bar magnet of length 6 cm has a magnetic moment of 4 J T–1. Find the strength of magnetic field at a distance of 200 cm from the centre of the magnet along its equatorial line.a)4 × 10–8 teslab)3.5 × 10–8 teslac)5 × 10–8 teslad)3 × 10–8 teslaCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup