A battery is charged at a potential of 15 V for 8 hours when the current flowing is 10 A…
Physics · Class 12 · CBSE — Current Electricity
A battery is charged at a potential of 15 V for 8 hours when the current flowing is 10 A. The battery on discharge supplies a current of 5 A for 15 hours. The mean terminal voltage during discharge is 14V. The watt-hour efficiency of the battery is:
- 82.5 %
- 80 %
- 90 %
- 87.5 %
Answer
(D) 87.5 %
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