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PHYSICS

JAMB 2015 - Question 23

Physics 2015 JAMB Past Questions - Question 23: if the distance between two point charges is increased,by a factor of four the magnitude of the electrostatic force between them will be

Choose the correct answers from the options given.

if the distance between two point charges is increased,by a factor of four the magnitude of the electrostatic force between them will be

A: 1/2 times its former value

B: 1/16 times its former value

C: 1/4 times its former value

D: 4 times its former value

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Correct Answer

Explanation

If the distance between two point charges is increased by a factor of four, the magnitude of the electrostatic force between them will decrease by a factor of sixteen. This is because the electrostatic force between two charges is inversely proportional to the square of the distance between them, according to Coulomb's law.