Question

The longer side of a rectangle is twice the length of its shorter side .A charge `q` is kept at one vertex.The maximum electric potential due to that charge at any other vertex is `V`, then the minimum electric potential at any other vertex will be
A. `2V`
B. `sqrt(3)V`
C. `V//sqrt(5)`
D. `sqrt(5)V`

Answer 1

Correct Answer - 3
long and short diagonal lengths are `sqrt(p^(2)+q^(2)+-pqcostheta)`