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Grade 12th passElectric Current

Please solve this,...............
...........................plz..see the attachment........

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Profile image of Cel
7 Years agoGrade 12th pass
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1 Answer

Profile image of Rajat
7 Years ago
The power stored in the battery during charging= VIT= 15×10×8 watt hours= 1200 watt hour
The Power dissipated by the battery during discharging = 5×15×14 = 1050 watt hours
Watt hour efficiency = (1050/1200 )100= 87.5% 
Done!!!