The coil of a dynamo is rotating in a magnetic field. The induced e.m.f. changes and also the number of magnetic lines of force changes. The correct statement is

Options :
  1. when the number of lines of force is minimum, induced e.m.f. is zero
  2. when the number of lines of force is maximum, the induced e.m.f. is zero
  3. when the number of lines of force is, the induced e.m.f. is maximum
  4. when the number of lines of force is maximum, induced e.m.f. will not be zero
Answer and Explanation :-

Answer: Option 2


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