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The current growth in two L-R circuits (...

The current growth in two L-R circuits (b) and (c) is as shown in Fig. Let `L_(1), L_(2), R_(1) and R_(2)` be the corresponding values in two circuits. Then

A

`R_(1) gt R_(2)`

B

`R_(1) = R_(2)`

C

`L_(1) gt L_(2)`

D

`L_(1) lt L_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B, D
Steady state current for both teh circuits is same. Therefore,
`(V)/(R_1)=(V)/(R_2) or R_(1)=R_(2)`
Further `tau_(L_(1)) lt tau_(L_2)` (`tau_(L) = "time costant"`)
`(L_1)/(R_1) lt (LL_2)/(R_2) or L_(1) lt L_(2)` `(R_(1)=R_(2))`.
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