Question
Question: If 20 J of work has to be done to move an electric charge of 4 C from a point, where potential is 10...
If 20 J of work has to be done to move an electric charge of 4 C from a point, where potential is 10 V to another point, where potential is V volt, find the value of V-
A
2 volt
B
70 volt
C
5 volt
D
15 volt
Answer
15 volt
Explanation
Solution
Work done by external source
Wext = q(VF – Vi), 20 = 4(V – 10); V = 15 volt.