Electro Magnetic Induction And Alternating Currents Question 598

Question: A coil of N = 100 turns carries a current I = 5 A and creates a magnetic flux $ \varphi ={{10}^{-5}}T{{m}^{-2}} $ per turn. The value of its inductance L will be [UPSEAT 2004]

Options:

A) 0.05 mH

B) 0.10 mH

C) 0.15 mH

D) 0.20 mH

Show Answer

Answer:

Correct Answer: D

Solution:

$ N\varphi =Li $
$ \Rightarrow 100\times {{10}^{-5}}=L\times 5\Rightarrow L=0.2\ mH. $



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