If the distance between two point charges its increased by a factor of four; the magnitude of the electrostatic force between them will be?

A. 1/4 of its former value
B. 1/16 of its former value
C. 1/2 of its former value
D. 4 times its former value

Correct Answer:

Option B – 1/16 of its former value

Explanation

For the two-point charges, the magnitude of the electrostatic force between them is given by the equation: