Electro Magnetic Induction And Alternating Currents Question 585

Question: Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 second, given L = 10 mH [DCE 2001]

Options:

A) 1 V

B) 1 mV

C) 1 mV

D) 0.1 V

Show Answer

Answer:

Correct Answer: B

Solution:

$ |e|,=L\frac{di}{dt}\Rightarrow ,|e|,=10\times {{10}^{-6}}\times \frac{1}{10}=1\mu V $



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