Two point charges of magnitude 40 C and 40 C are situated al

Two point charges of magnitude 4.0 C and -4.0 C are situated along the x-axis at x₁ = 2.0 m and x₂= -2.0 m, respectively. What is the electric potential at the origin of the xy-coordinate system?

Solution

Electric potential at the origin is

V=V₁ + V₂ =KQ/r₁ +KQ/r₂

V=(9*10⁹)(4*10^-6)/2 - (9*10⁹)(4*10^-6)/2 ]

V=0 V