Electro Magnetic Induction And Alternating Currents Question 370

Question: A coil having an area $ 2m^{2} $ is placed in a magnetic field which changes from $ 1Wb/m^{2} $ to $ 4Wb/m^{2} $ in a interval of 2 second. The e.m.f. induced in the coil will be [DPMT 1999; MP PET 2002]

Options:

A) 4 V

B) 3 V

C) 1.5 V

D) 2 V

Show Answer

Answer:

Correct Answer: B

Solution:

$ |e|,=A.\frac{\Delta B}{\Delta t}=2\times \frac{(4-1)}{2}=3\ V $ .



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