Multiple choice

Two conductors insulated from each other are charged by transferring electrons from one conductor to another. A potential difference of 200 V was produced on transferring 6.25 x 1015 electrons from one conductor to another. The capacity of the system will be _________.

  1. 2 x 10-1 F

  2. 5 x 10-6 F

  3. 2 x 105 F

  4. 1.95 x 1036 F

  5. 51.28 x 1034 F
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

q = c x v c = q/v q = n x e c = n x e/v n = 6.25 x 1015 e = 1.6 x 10-19 v = 200 c = (6.25 x 1015) x (1.6 x 10-19)/200 c = 5 x 10-6 f 

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