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Copper Has 8 ×\times 1028 Current Carrying Electrons Per M3 ×\times 10-9 M/s
B) 56

Question 43

Multiple Choice

Copper has 8.5 ×\times 1028 current carrying electrons per m3. A copper wire of radius 0.15 mm carries a current of 17 mA.What is the average drift velocity for the electrons?


A) 2.7 ×\times 10-9 m/s
B) 56 ×\times 10-6 m/s
C) 18 ×\times 10-6 m/s
D) more information is needed for this calculation

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