The storage battery of a car has an emf of 12V. If the internal resistance of the battery is `0.4Omega`,what is the maximum current that can be drawn from the battery?

A storage battery of a car has an e.m.f. of 12V. If the internal resistance of the battery is 0.4 ohms what is the maximum current that can be drawn from the battery?

If the combination is connected to a battery of emf 20V and negligible internal resistance,determine the current throgh each resistor and the total current drawn from. the battery

A 50V battery is connected across 10 ohm resistor and a current of 4.5A flows. The internal resistance of the battery is