Question

I

A 3 C charge and a 6 C charge feel 4 N of force between them. If the 6 C is replaced
with a 3 C what will the new force be?

Answer 1

The new force between charges is 2 N.

Step-by-step explanation:

It is given that, a 3 C charge and a 6 C charge feel 4 N of force between them.

The force between charges is given by :

`F=(kq_1q_2)/(r^2)`

r is distance between charges

Original force is :

`4=(k(3)(6))/(r^2)\ ....(1)`

If the 6 C is replaced with a 3 C, new force between them is given by :

`F'=(k(3)(3))/(r^2)\ ....(2)`

Dividing equation (1) and (2) we get :

`(4)/(F')=(2)/(1)\\\\F'=2\ N`

So, the new force between charges is 2 N.