A resistance of `4 Omega` and a wire of length 5 meters and resistance `5 Omega`
Channel: Doubtnut
Date: 2020-01-19

A resistance of `4 Omega` and a wire of length 5 meters and resistance `5 Omega` are joined in series and connected to a cell of e.m.f. `10 V` and internal resistance `1 Omega`. A parallel combination of two identical cells is balanced across `300 cm` of wire. The e.m.f. `E` of each cell is