Question

12. The velocity of charge leading to 1 A current which flows in a copper conductor of cross - section 1
cm and length 10 km is _. (Free electron density of copper is 8.5 x 1028 / m”). The time taken by the
electric charge to travel from one end of the conductor to the other is
[di
a) 0.735 m/s, 431yr
b) 7.35 m/s, 43.1yr
c) 7.5um/s, 43.1yr
d) 0.735u m/s, 431yr​

Answer 1

Answer:

(d) is the correct answer

Explanation:

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