The resistance of the four arms `P, Q, R` and `S` in a Wheatstone\'s bridge
Channel: Doubtnut
Date: 19/01/2020

The resistance of the four arms `P, Q, R` and `S` in a Wheatstone\'s bridge are `10 ohm 30 ohm` and `90 ohm` rerspectively. The e.m.f. and internal resistance of the cell are `7 volt` and `5 ohm` respectively. If the galvanometer resistance is `50 ohm`, the current drawn for the cell will be