Question

The force of repulsion between two point charges is F, when these are at distance 0.1 m apart. Now the point charges are replaced by spheres of radii 5 cm each having the same charge as that of the respective point charges. The distance between their centres is again kept 0.1m; then the force of repulsion will –

• A. Increase
• B. Decrease
• C. Remain F
• D. Become $\frac{10F}{9}$

Answer 1

Answer: (C)

Remain F

Answer 2

charges may be assumed at the centre