A storage battery of emf 8V, internal re...

A storage battery of emf 8V, internal resistance `1Omega`, is being charged by a 120V d.c. source, using a `15Omega` resistor in series in the circuit. Calculate (i) the current in the circuit. (ii) terminal voltage across the battery during charging, and (iii) chemical energy stored in the battery in 5 minutes?

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