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 $ .
