A battery of six cells each of e.m.f . 2...

A battery of six cells each of e.m.f . 2V and internal resistance `0.5Omega` is being charged by D.C. mains of e.m.f. 220V by using an external resistance of `10Omega`. What is the potential difference across the battery?

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In case of charging of battery, terminal potential `V=E+Ir=12+16+3= 60`volt.

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