A cube of side b has a charge q at each of its vertices. Determine the potential and electric field due to this charge array at the center of the cube.

Options

A. `(2q)/(sqrt(3) pi in_(0) b)` ,zero
B. `(4q)/(sqrt(3) pi in_(0) b)` ,zero
C. `(5q)/(sqrt(3) pi in_(0) b)` ,zero
D. `(7q)/(sqrt(3) pi in_(0) b)` ,zero

Answer

2

Explanation

`V_(0) = (1)/( 4 pi in_(0)) .(q)/(sqrt(3) b//2) xx 8 = (4)/(sqrt(3)) (q)/(pi in_(0) b)`
`E_(o) = 0`