Question:
Lenz’s law gives:
Lenz’s law gives:
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Lenz’s law is used to determine the direction of the induced emf or current, ensuring it opposes the change in magnetic flux.
Updated On: Jan 22, 2026
- The magnitude of induced emf.
- Magnitude of induced current.
- The direction of induced emf.
- Both the magnitude and direction of induced emf.
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the concept.
Lenz’s law states that the direction of the induced current (or emf) is such that it opposes the change in the magnetic flux that caused it. Lenz's law helps determine the direction of induced emf but not its magnitude.
Step 2: Analyzing the options.
(1) The magnitude of induced emf: This is incorrect. Lenz’s law only gives the direction, not the magnitude of the induced emf.
(2) Magnitude of induced current: This is incorrect. The law does not provide the magnitude of the induced current either.
(3) The direction of induced emf: Correct. Lenz's law helps to determine the direction of the induced emf based on the change in flux.
(4) Both the magnitude and direction of induced emf: This is incorrect. Lenz’s law only gives the direction, not the magnitude.
Step 3: Conclusion.
The correct answer is (3) The direction of induced emf, as Lenz's law tells us how to determine the direction of the induced emf.
Lenz’s law states that the direction of the induced current (or emf) is such that it opposes the change in the magnetic flux that caused it. Lenz's law helps determine the direction of induced emf but not its magnitude.
Step 2: Analyzing the options.
(1) The magnitude of induced emf: This is incorrect. Lenz’s law only gives the direction, not the magnitude of the induced emf.
(2) Magnitude of induced current: This is incorrect. The law does not provide the magnitude of the induced current either.
(3) The direction of induced emf: Correct. Lenz's law helps to determine the direction of the induced emf based on the change in flux.
(4) Both the magnitude and direction of induced emf: This is incorrect. Lenz’s law only gives the direction, not the magnitude.
Step 3: Conclusion.
The correct answer is (3) The direction of induced emf, as Lenz's law tells us how to determine the direction of the induced emf.
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