Two charges 10 × 10-8 C and -6 × 10-8 C are located 16 cm apart. Find the points on the line joining the two charges where the net electric potential is zero. [Take the potential at infinity to be zero]

Three capacitors C1 = 1 μF, C2 = 2 μF, and C3 = 3 μF are connected in series across a supply voltage V = 10 V. Find the potential difference across capacitor C2.

An electric charge 10 −3 μC is placed at the origin of the x-y plane. The potential difference between points A and B located at (√2 m, √2 m) and (2 m, 0 m) respectively is: