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There are 85 1028 free electrons in one cubic metre of copper When the copper conductor is worked at 155 A cm2 the velocity of the axial drift will be

There are 8.5 x 1028 free electrons in one cubic metre of copper. When the copper conductor is worked at 155 A/cm2 the velocity of the axial drift will be

(A) 1.14 x 10-6 m/s

(B) 1.14 x 10-5 m/s

(C) 1.14 x 10-4 m/s

(D) 1.14 x 10-3 m/s.

 

Jul 31 2020 View more View Less

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