Question

Four charges, each of value q, are placed at
the four corners of a square of side a what
is the potential at the centre of the square
Pac​

Answer 1

Answer:

Potential at the centre will be the algebraic sum of potential due to all the charges at the center

Potential due to a single charge at the center:

$P = \frac{\sqrt{2}kq}{a}$

Thus, Pac = 4P

$P_{ac} = 4P = \frac{4 \sqrt{2} kq}{a}$