An electric bulb uses 600J of electricity for 10 seconds what is it's power? *
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Explanation:
Power can be defined 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 = Work/Time
P = W/t
Work done is the same as the energy consumed by the lamp.
Put the above values in the power formula; we get the power of the lamp.
P= 600/10
P =60 W
∴ The power of the lamp is 60 W
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