define power. an electric heater is rated 1500w how much energy does it use in 10 hours?
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Answer:
power is defind as the rate of doing work.
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Explanation:
We can define power as the rate of doing work, it is the work done in unit time. The SI unit of power is Watt (W) which is joules per second (J/s).
power = 1500/10
= 150 watt/ hr
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