Two large conduction spheres carrying charges `Q_(1)` and `Q_(2)` are brought close to each other. Is the magnitude of the force between them exactly given by `Q_(1)Q_(2)//4piepsilon_(0)r^(2)`. Where r is the distance between their centers.

Explanation

Two large conducting sphere behave as point charge. Whole charge on the surface of conducting sphere seems to be at the centre of sphere.

`F=1/(4piepsilon_0)(Q_1Q_2)/r^2`