A battery is charged at a potentail of `15 V` for 8 hours when the current
Channel: Doubtnut
Date: 19/01/2020

A battery is charged at a potentail of `15 V` for 8 hours when the current flowing is `10 A` for 15 hours. Then mean terminal voltage during discharge is `14 V`. The Watt-hour efficiency of the battery is