# 2.14 Two tiny spheres carrying charges  and  are located 30 cm apart. Find the potential and electric field:(a) at the mid-point of the line joining the two charges

As we know

Outside the sphere, we can assume it like a point charge. so,

the electric potential at midpoint of the two-sphere

where q1 and q2 are charges and d is the distance between them

SO,

The electric field

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