A) Ampere's circuital law.
B) Biot-Savart law.
C) Lenz's law.
D) Fleming's right hand rule.
Correct Answer: C
Solution :
Option [c] is correct. Explanation: According to Lenz's law, the direction of an induced e.m.f. always opposes the change in magnetic flux that causes the e.m.f.
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