The Lenz's law refers to induced _.
Correct answer: D. Currents.
- A. emf.
- B. Resistance.
- C. Shear
- D. Currents.
Explanation
Lenz's law refers to induced currents and not to induced EMF, which means that we can apply it directly to closed conducting loops or coils. The Lenz law is:"The direction of the induced current is always so as to oppose the change which causes the current.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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About Lenz's Law
Lenz's law states that the induced current flows in a direction that opposes the change in magnetic flux producing it. Questions connect this rule with Faraday's law, magnetic flux, induced emf and the direction of motion or current, while distinguishing opposition to flux change from opposition to the magnetic field itself.
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