Electro Magnetic Induction And Alternating Currents Question 571

Question: If a current of 10 A flows in one second through a coil, and the induced e.m.f. is 10 V, then the self-inductance of the coil is [CPMT 2000; Pb. PMT 2001; MHCET 2003]

Options:

A) $ \frac{2}{5}H $

B) $ \frac{4}{5}H $

C) $ \frac{5}{4}H $

D) 1 H

Show Answer

Answer:

Correct Answer: D

Solution:

$ |e|,=L\frac{di}{dt}\Rightarrow 10=L\times \frac{10}{1}\Rightarrow L=1H $



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