00:01
Hi.
00:02
So we are to determine what happens to the magnitude of the force between the two objects, wherein the charges are coupled with no change in the distance between them.
00:15
So remember that the column's law states that the force between two point charges is given by this formula.
00:27
So force would be equivalent to columns constant k multiplied by, x .1 multiplied by q sub 2.
00:40
Q sub 2 are the magnitudes of the charges over r.
00:45
R is the distance between the charges and raises to the power of 2.
00:50
So this would be the initial force.
00:55
And then if the charges in both objects are doubled, then that means the new charges q1 becomes 2 multiplied by q1 and q2 becomes 2 multiplied by q sub 2.
01:11
So the new force, i'm just going to write this is f sub 2.
01:17
So this would be f sub 1, the initial force.
01:21
It would be equivalent to k.
01:23
K is constant, multiplied by 2, multiplied by q sub 1, multiplied by 2, k sub 2 over r squared...