Physics, asked by sdevkota478, 2 months ago

Will the drift of electrons change if diameter of wire is halved?

Answers

Answered by kingslint
0

Answer:

Yes. If the resistance for an object is defined as resistivity times length over the cross-sectional area, then decreasing the diameter effectively increases the resistance.

Explanation:

Answered by Sagar9040
2

Answer:

Yes. If the resistance for an object is defined as resistivity times length over the cross-sectional area, then decreasing the diameter effectively increases the resistance.

Explanation:

Since the cross sectional current density stays the same, so does the drift velocity. ... If you halve the diameter, you divide the cross sectional area by 4. To maintain the same current, the drift velocity must increase by a factor of 4.

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