Question:
A copper wire of length 1 m and uniform cross sectional area 5 × 10-7 m2 carries a current of 1 A. Assuming that there are 8 × 1028 free electrons per m3 in copper, how long will an electron take to drift from one end of the wire to the other?
A copper wire of length 1 m and uniform cross sectional area 5 × 10-7 m2 carries a current of 1 A. Assuming that there are 8 × 1028 free electrons per m3 in copper, how long will an electron take to drift from one end of the wire to the other?
Updated On: Apr 17, 2024
- 0.8 × 103 S
- 1.6 × 103 S
- 3.2 × 103 S
- 6.4 × 103 S
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The Correct Option is D
Solution and Explanation
The correct answer is (D) : 6.4 × 103 S.
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