Six equal negative point charges, -q, are placed symmetrically around a circle of radius R. What is the electric potential at the centre of the circle?

Question

Quizplus · Accepted Answer

The electric potential at the centre of the circle is the sum of the electric potentials due to each of the six charges. The electric potential due to a single charge -q at a distance R is given by:$$V = -q/(4πε₀R)$$Therefore, the electric potential at the centre of the circle due to all six charges is:$$V = 6 * (-q/(4πε₀R)) = -3q/(2πε₀R)$$

Six Equal Negative Point Charges, -Q, Are Placed Symmetrically Around