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A coil of 40 H inductance is connected i...

A coil of `40 H` inductance is connected in series with a resistance of `8` ohm and the combination is joined to the terminals of a `2 V` battery. The time constant of the circuit

A

40 seconds

B

20 seconds

C

8 seconds

D

5 seconds

Text Solution

Verified by Experts

The correct Answer is:
D
`tau=L/R=40/8=5sec`
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