Answer / kumaran

Kilowatt Hours = (Watts x Hours of Operation)/1000

Answer / sivananda samantara

ok amps is the unit of current so guess 1bulb=1000watt
so we know 1000watt=1kw
bulb is running for 10hrs
so 1kw*10hrs=10kwh(ans)

Answer / kishore

power=v*iwatts
power=energy/time
energy=power*time watthours
so energy=volt ampere hours
generally energy in kilo watt hours

Answer / raghu

amps x volts = va x operationhoutrs /1000

Answer / kc

amps is the amount of current drawn.voltage*current*powerfactor*no of hours gives amount of energy consumed

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