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The figure shows an L-R circuit the time...

The figure shows an `L-R` circuit the time constant for the circuit is

A

`L/2R`

B

`(2L)/R`

C

`(2R)/L`

D

`R/(2L)`

Text Solution

Verified by Experts

The correct Answer is:
B
By short circuiting the battery, net resistance across inductor is `R/2` (`R` and `R` in parallel)
`:. tau_("net")=L/R_("net")=(2L)/R`
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