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A battery is charged at a potential of 1...

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 14 V. The Watt-hour efficiency of the battery is 

A

`82.5%`

B

`80%`

C

`90%`

D

`87.5%`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - II
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