A current of `2 A` flows through a `2 Omega` resistor when connected across a
Channel: Doubtnut
Date: 2020-01-19

A current of `2 A` flows through a `2 Omega` resistor when connected across a battery. The same battery supplies a current of `0.5 A` when connected across a `9 Omega` resistor. The internal resistance of the battery is