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 $



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