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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.
Reason (R): Resistance of the two loops are equal.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false and R is true
Correct answer is option 'C'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A)...
Induced e.m.f. in a rotating loop in a magnetic field depends on the area of the loop, number of turns, speed of rotation and magnetic field strength. It does not depend on the material of the coil. So, when two identical loops of copper and aluminium are rotated with the same speed in the same magnetic field, the induced e.m.f. will be the same. So, the assertion is true. Resistance of the two loops cannot be equal. Resistance of the copper loop is less than that of the aluminium loop. So, the reason is false.
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Directions : In the following questions, A statement of Assertion (A)...
Assertion (A): When two identical loops of copper and aluminium are rotated with the same speed in the same magnetic field, the induced e.m.f. will be the same.
Reason (R): Resistance of the two loops is equal.
The correct answer is option C - A is true, but R is false.
Explanation:
When a conductor moves in a magnetic field, an emf (electromotive force) is induced in the conductor due to the phenomenon of electromagnetic induction. This emf is given by Faraday's law of electromagnetic induction, which states that the emf induced in a circuit is directly proportional to the rate of change of magnetic flux passing through the circuit.
The induced emf can be calculated using the equation:
E = -N(dΦ/dt)
Where E is the induced emf, N is the number of turns in the coil, and (dΦ/dt) is the rate of change of magnetic flux.
Now, let's analyze the given statements:
Assertion (A): When two identical loops of copper and aluminium are rotated with the same speed in the same magnetic field, the induced emf will be the same.
This statement is true. According to Faraday's law, the induced emf depends on the rate of change of magnetic flux, which is the same for both copper and aluminium loops as they are rotated with the same speed in the same magnetic field. Therefore, the induced emf will be the same for both loops.
Reason (R): Resistance of the two loops is equal.
This statement is false. The resistance of copper and aluminium is different. Copper has lower resistance compared to aluminium. Therefore, the resistance of the two loops is not equal.
Hence, the reason (R) is not the correct explanation of the assertion (A).
To summarize, the induced emf will be the same for both copper and aluminium loops when they are rotated with the same speed in the same magnetic field, but the resistance of the two loops is not equal.
Reason (R): Resistance of the two loops is equal.
The correct answer is option C - A is true, but R is false.
Explanation:
When a conductor moves in a magnetic field, an emf (electromotive force) is induced in the conductor due to the phenomenon of electromagnetic induction. This emf is given by Faraday's law of electromagnetic induction, which states that the emf induced in a circuit is directly proportional to the rate of change of magnetic flux passing through the circuit.
The induced emf can be calculated using the equation:
E = -N(dΦ/dt)
Where E is the induced emf, N is the number of turns in the coil, and (dΦ/dt) is the rate of change of magnetic flux.
Now, let's analyze the given statements:
Assertion (A): When two identical loops of copper and aluminium are rotated with the same speed in the same magnetic field, the induced emf will be the same.
This statement is true. According to Faraday's law, the induced emf depends on the rate of change of magnetic flux, which is the same for both copper and aluminium loops as they are rotated with the same speed in the same magnetic field. Therefore, the induced emf will be the same for both loops.
Reason (R): Resistance of the two loops is equal.
This statement is false. The resistance of copper and aluminium is different. Copper has lower resistance compared to aluminium. Therefore, the resistance of the two loops is not equal.
Hence, the reason (R) is not the correct explanation of the assertion (A).
To summarize, the induced emf will be the same for both copper and aluminium loops when they are rotated with the same speed in the same magnetic field, but the resistance of the two loops is not equal.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer?.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When two identical loops of copper and Aluminium are rotated with same speed in the same magnetic field, the induced e.m.f. will be the same.Reason (R): Resistance of the two loops are equal.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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