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Current growth in two L-R circuits (b) a...

Current growth in two L-R circuits (b) and (c ) as shown in figure (a). Let `L_(1), L_(2), R_(1)` and `R_(1)` be the corresponding values in two circuits. Then

A

`R_(1)gt R_(2)`

B

`R_(1)=R_(2)`

C

`RL_(1)gt L_(2)`

D

`L_(1)lt L_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B, D
`i=E/R(1-e^(-t//tau)) =I_(0)(1-e^(-t//tau))`
`I_(0)=E/R_(1)=E/R_(2) implies R_(1)=R_(2)`
`tau_(2) gt tau_(1) implies L_(2)/R_(1) gt L_(2)/R_(2)`
`L_(2) gt L_(1)`
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