Question

If L= 100 micro Henry, current changes by 1 A in 0.1 s. What is the emf produced?
options ;
A. 1 mV

B. 100 mV

C. 10 mV

D. 0.1V

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Answer 1

Answer:

1 mv

Option 1:-

Explanation:

EMF= L(di/dt)

EMF=(100×10-³)×(1/2.1)

EMF=10-¹×(1/10-1)

EMF=1 volt

So, the EMF induced due to current change in indicator is 1 mv