Question

What happens to the drift velocity for free-electron when a)The length of the conductor is double? b)The temperature of the conductor is increased?

Answer 1

Answer:

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Explanation:

• "When length is doubled, the drift velocity is halved and the resistance is doubled. Thus, when the length of the conductor is doubled, the drift velocity is halved

The drift velocity is also slightly temperature-dependent: an increase in temperature causes atoms to vibrate more, which increases the number of collisions electrons have on their way through the wire and decreases the drift velocity.