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The Current Flowing in a 20-Cm Long and 2-Cm Radius

Question 65

Multiple Choice

The current flowing in a 20-cm long and 2-cm radius solenoid having 500 turns decreases from 3 A to 1 A in 0.1 seconds.Determine the magnitude of the induced electric field inside the solenoid 1-cm from its center.


A) 5 * 10-1 V/m
B) 5 * 10-4 V/m
C) 3 * 10-4 V/m
D) 3 * 10-2 V/m

Correct Answer:

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