In the circuit shown in the fig., `R_(1): R_(2) : R_(3) = 4 : 1 : 2`. (a) Will the current through `R_(1)` increase or decrease when a new resistance `R_(4)` is added in parallel to `R_(2)` ? (b) Change in current through `R_(1)` when `R_(4)` is added is found to be `0.2 A`. Calculate the current through `R_(4)`.

In the circuit shown in the fig., `R_(1): R_(2) : R_(3) = 4 : 1 : 2`.

1.	In the circuit shown in the fig., `R_(1): R_(2) : R_(3) = 4 : 1 : 2`. (a) Will the current through `R_(1)` increase or decrease when a new resistance `R_(4)` is added in parallel to `R_(2)` ? (b) Change in current through `R_(1)` when `R_(4)` is added is found to be `0.2 A`. Calculate the current through `R_(4)`.
Answer» Correct Answer - (a) Increase (b) `I_(4) = 1.4 A`

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