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A 15-MH Inductor Is Connected in Series with a Battery Ω\varOmega

Question 12

Multiple Choice

A 15-mH inductor is connected in series with a battery and a 12- Ω\varOmega resistor,in a circuit with an open switch.0.50 ms after the switch is closed,the current in the circuit is 1.2A. What is the EMF supplied by the battery?


A) 44 V
B) 21 V
C) 3.6 V
D) 1.8 V

Correct Answer:

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