00:01
Hello, in this question, we have been given with a diagram that is this, the charges, and we need to find the force.
00:10
Since we know that the force has formula, kq1, q2 by r square, right? so what we can do is we can find the force.
00:21
We have to find the net force in the direction on first charge.
00:25
So we can find the force on one due to third.
00:28
So that would be 9 multiplied by 10 to power 9, that is k, q1, that is 4 multiplied by 10 to power minus 9, multiplied by 10 to power minus 9, whole divided by the r squared, that would be 9 multiplied by 10 to per minus 4.
00:44
So this value turns out to be minus 12 multiplied by 10 to minus 5, newton...