The coil of dynamo is rotating in a magnetic field. The developed induced e.m.f. changes and the number of magnetic lines of force also changes. Which of the following condition is correct [MP PET 1993]

• A.            Lines of force minimum but induced e.m.f. is zero
• B.            Lines of force maximum but induced e.m.f. is zero
• C.            Lines of force maximum but induced e.m.f. is not zero
• D.            Lines of force maximum but induced e.m.f. is also maximum