Electro Magnetic Induction And Alternating Currents Question 596
Question: The current through choke coil increases form zero to 6A in 0.3 seconds and an induced e.m.f. of 30 V is produced. The inductance of the coil of choke is [MP PMT 2004]
Options:
A) 5 H
B) 2.5 H
C) 1.5 H
D) 2 H
Show Answer
Answer:
Correct Answer: C
Solution:
$ |e|,=L\frac{di}{dt}\Rightarrow 30=L\times \frac{(6-0)}{0.3}\Rightarrow L=1.5\ H $
