A cell of internal resistance of 0.2 Ω is connected two cells of resistance 6Ω and 8 Ω joined parallel. There is a current of 0.2 A in the 8 Ω coil. Find the emf of cell.
According to the given information, the electric circuit can be drawn as follows:
Given,
r=0.2Ω
R1=8Ω; I1=0.2A
R2=6Ω
Since 8Ω and 6Ω are in parallel. So the potential difference across in parallel circuit is equal.
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