1.

The power of an electric heaters is 1500 watt. How much energy it consumes in 10 hours?

Answer»

:Power = WORK / timeGiven :Power = 1500 WTime = 10 hrWork Energy is the capacity of doing workBy the formula :1500 W = work / 10 hr= > work = 1500 W × 10 hr= > work = 15000 Whr15000 Whr is the energy consumed .1 Whr = 3600 J15000 W hr = 15000 × 3600 J                     = 54000000 J                     = 5.4 × 10⁷ JANSWER : 5.4 × 10⁷ J is the energy consumed .



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