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 $
