How is it so that a bulb glows as soon as it's switch on; though the electron drift Wat the speed of 1 or 2 cm/ s

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Solution

Electricity is the transport of the electric impulse due to the electric field, with the speed of light. It is not the electrons that are really moving.so it's just the em waves not the electrons and also it has the speed of light

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how is it so that a bulb glows as soon as it is switched on; though the electrons drift at a speed of about 1 or 2 cm/s.

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