Answer to Question #231534 in Electric Circuits for Bus

Question

Determine the electric potential at the center of a square if 4C charges
are placed at the vertices of the square of side length 5mm

Answer 1

Given

Charge of each charge is Q= 4 C

Length of square is $L=5 \times 10^{-3} m$

The electric potential at the centre of the square is

$V=\frac{4kQ}{\frac{L}{\sqrt 2}}=\sqrt 2\frac{4kQ}{L}$

$=\sqrt 2\frac{4(9\times 10^9)(4 )}{5 \times 10^{-3}}=4.07\times 10^{13} V$