The electrical energy required to heata bucket of water to a certaintemperature is 4 kWh. If the heat lossesare 20 percent, the energy input is(a) 2 kWh(6) 3.2 kWh(c) 5 kWh(d) 6 kWh
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Answer:
b
Explanation:
20% of 4 is 0.8
hence 4-0.8= 3.2.....
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