Multiple Choice
The current in an RL circuit is zero at time t = 0 and increases to 75% of its final value in 4.5 s.The time constant of this circuit is approximately
A) 6.0 s
B) 12 s
C) 8.7 s
D) 3.3 s
E) 9.8 s
Correct Answer:

Verified
Correct Answer:
Verified
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