Electro Magnetic Induction And Alternating Currents Question 570
Question: A varying current at the rate of 3 A/s in a coil generates an e.m.f. of 8 mV in a nearby coil. The mutual inductance of the two coils is [Pb. PMT 2000]
Options:
A) 2.66 mH
B) $ 2.66\times {{10}^{-3}},mH $
C) 2.66 H
D) 0.266 H
Show Answer
Answer:
Correct Answer: A
Solution:
$ |e|,=M\frac{di}{dt}\Rightarrow 8\times {{10}^{-3}}=M\times 3\Rightarrow A_{1}=2.66mH $
