A battery is charged at a potential of 15V for 8 hours when the current flowing is 10A. The battery on discharge supplies a current of 5A for 15 hours. The mean terminal voltage during discharges is 14 V. The "Watt hour" efficiency of the battery is :-
A
80%
B
90%
C
87.5%
D
82.5%

Question

A battery is charged at a potential of 15V for 8 hours when the current flowing is 10A. The battery on discharge supplies a current of 5A for 15 hours. The mean terminal voltage during discharges is 14 V. The "Watt hour" efficiency of the battery is :-

A

80%

B

90%

C

87.5%

D

82.5%

Accepted Answer

87.5%

Answer

80%

Answer

90%

Answer

82.5%

AIPMT PRELIMS 2004 Physics Batteries MCQ Question

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