A) 20 seconds
B) 5 seconds
C) 1/5 seconds
D) 40 seconds
Correct Answer: B
Solution :
[b] Time constant is L/R Given, L=40H & \[R=8\Omega \] \[\therefore \,\,\,\tau =40/8=5\,\sec \]You need to login to perform this action.
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