Question

two equal charges repel each other with a force of 4 × 10^-5 Newton when they are 0.03 metre apart in air. find the magnitude of charges; what will be the force is the distance between them is doubled

Answer 1

Answer:

if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value. If the charges come 10 times closer, the size of the force increases by a factor of 100. The size of the force is proportional to the value of each charge.