Electro Magnetic Induction And Alternating Currents Question 577
Question: An e.m.f. of 12 volt is produced in a coil when the current in it changes at the rate of 45 amp/minute. The inductance of the coil is [MP PET 2000]
Options:
A) 0.25 henry
B) 1.5 henry
C) 9.6 henry
D) 16.0 henry
Show Answer
Answer:
Correct Answer: D
Solution:
$ e=L\frac{di}{dt}\Rightarrow 12=L\times \frac{45}{60}\Rightarrow L=16H $
