Six equal point charges Q = 10nC are located at 2,3,4,5,6,7m. Find the potential at origin.

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

140.35

141.35

142.35

143.35

Correct Answer : Option (D) : 143.35

Explanation : V = (1/4πεo) ∑Q/r = (10 X 10^-9/4πεo)
(0.5 + 0.33 + 0.25 + 0.2 + 0.166 + 0.142) = 143.35 volts.

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