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  4. The drift velocity is very small, but it is found that as soon as one switch on the light at home, the bulb immediately glows. This is because

Q. The drift velocity is very small, but it is found that as soon as one switch on the light at home, the bulb immediately glows. This is because

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Solution:

The velocity of electric field is the velocity of light. It is the field that causes current to flow and not the electrons that travel from one end to the other.

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