The electrostatic force between two charged metal spheres is 2N. If the charge on each sphere is doubled, what is the new force between the spheres? Question 2 options:
A. 2N
B. 4N
C. 1N
D. 8

8 N

Explanation:

The force between two charges is given by :

Where

k is electrostatic constant

d is the distance between two charges

It means,

When the distance is d, the force is 2 N. If the charge on each sphere is doubled, q₁' = q₂' = 2q₁ = 2q₂. New force will becomes:

So, the new force becomes 8N. Hence, the correct option is (d).

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