Question

The velocity of charge leading to 1 A current which flows in a copper conductor of cross - section 1 cm2 and length 10 km is ___. (Free electron density of copper is8.5×1028 /m3 ).The time taken by the electric charge to travel from one end of the conductor to the other is
Option:-A 0.735 m/s, 431 yr
Option:-B
7.35 m/s, 43.1 yr
Option C :- 7.5μ m/s, 43.1 yr
Option D :- 0.735μ m/s, 431 yr

Answer 1

Answer:

431.4 yr

Explanation:

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