Multiple Choice
Copper contains 8.4 *1028 free electrons per cubic meter.A copper wire of cross-sectional area 7.4 *10-7 m2 carries a current of 1 A.The electron drift speed is approximately:
A) 3 * 108 m/s
B) 103 m/s
C) 1 m/s
D) 10-4 m/s
E) 10-23 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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