Electro Magnetic Induction And Alternating Currents Question 609

Question: A coil having an inductance of 0.5 H carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is [Kerala PET 2005]

Options:

A) 10

B) 5

C) 2.5

D) 1.25

Show Answer

Answer:

Correct Answer: C

Solution:

$ | e |=L| \frac{di}{dt} |=0.5\times \frac{10}{2}=2.5V $



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