A copper wire has a circular cross section with a raduis of 1.25mm. If the wire carries a current of 3.70A, find the drift speed

Question

3 years ago

11

of electron in this wire.

1 answer:

alexdok [17] · Answer 1 · 2022-05-14T04:35:21+03:00

4 0

Answer: 0.043mm/s

Explanation:

The drift speed of electron in this wire will ba calculated as:

= I/nqA

= I/nqπr²

= 3.7/[(1.1 × 1^29) × (1.6 × 10^19) × (3.14 × 0.00125²)

= 4.3 × 10^-5

= 0.043mm/s

The drift speed of the electron in this wire is 0.043mm/s.