00:01
Hello everyone, if we talk about this question, in this given question we are given with three charges which are pleased at x1 equals to minus 2 meter, x2m, x2 equals to 3 meter and x3 equals to 7 meter, and the magnitude of charges are 40 microculum, 30 microculum and 20 microculum.
00:16
Now you can clearly see that the distance between charge 1 and charge 2 is 5 meter and between charge 2 and charge 3 is 4 meter.
00:24
Now we have to find out, first we have to make free body diagrams of all these 3 charges.
00:29
So let us consider this is charge q1.
00:32
Okay, now since all the charges are positive, so they will ripple each other.
00:36
Now q1 will be repelled by the charge 2 as well as charge 3 in the same direction, okay, because they are lying on the right -and -side direction.
00:44
So right -and -side of q1, so they will push q1 in the left -hand side.
00:48
So the net force on q1 will be force on charge 1 due to 2 plus force on charge 1 due to 3.
00:56
This is the free body diagram of q1.
00:58
Now similarly, let us try to 1.
00:59
To make the free body diagram of q2.
01:01
Now the charge q1 will ripple q2 in this particular direction and charge q3 will ripple q2 into a left -hand side direction.
01:08
So here the force will be f, force on 2 due to 1 and in this direction force on 2 due to 3.
01:15
This is free body diagram of q2.
01:17
And at last, let's suppose this is charge 3, q3 and net force on q3 will be on right -in side because q2 will ripple q3 in the right -in side and q1 will also ripple q3 in the right -and -side direction.
01:30
Okay, so net force on q3 will be force on three due to 1 plus force on 3 due to 2...