Question

If the electron drift speed is so small and the electron’s charge is small, how can we still obtain large amount of current in a conductor?

Answer 1

Answer:

Although the electron's charge e and drift speed vd are very small quantities, yet we can obtain a large amount of current in a conductor. This is because the fee electron density (number of electrons per unit volume) of a conductor is very large 10^29 m^-3.

Explanation:

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Answer 2

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The electron number density is approximately 10²⁹ m-³per unit volume. It is due to this enormous electron number density we are able to obtain large amount of current in a conductor.

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