Electro Magnetic Induction And Alternating Currents Question 567
Question: What is the coefficient of mutual inductance when the magnetic flux changes by $ 2\times {{10}^{-2}}Wb $ and change in current is 0.01A [BHU 1998; AIIMS 2002]
Options:
A) 2 henry
B) 3 henry
C) $ \frac{1}{2}\ henry $
D) Zero
Show Answer
Answer:
Correct Answer: A
Solution:
$ \Delta \varphi =L\Delta I $
Þ $ L=\frac{\Delta \varphi }{\Delta I}=\frac{2\times {{10}^{-2}}}{0.01}=2H $
