Charges of `+(10)/(3)xx10^(-9)C` are placed at each of the four corners of a square of side 8cm. The potential at the intersection of the diagonals is ……………

Options

A. `150sqrt(2)` Volt
B. `900sqrt(2)` Volt
C. `1500sqrt(2)` Volt
D. `900sqrt(2).sqrt(2)` Volt

Answer

C

Explanation

Potential at the centre, `V=4xx(1)/(4piepsilon_(0))xx(q)/((a)/(sqrt(2)))`
`q=(10)/(3)xx10^(-9)Canda=8cm=8xx10^(-2)m, V=(4xx9xx10^(9)xx10xx10^(-9)xxsqrt(2))/(3xx8xx10^(-2))=1500sqrt(2)`