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Electricity
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Electricitywhy does the bulb lights up as soon as we switch on the key?
Re: ElectricityCOZ light travels with a velocity of 300000 km/h.
Re: ElectricityWhen we switch on the button, the circuit completes and as a result the electrons pass from the battery or any other AC power source and on reaching the filament the electric energy is converted into heat energy which inturn heats up the tungsten filament which in turn makes the filament glow and light gets on.
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