00:01
Hello students, in this question we have two parts.
00:03
First a and b corresponds to first question and c and d corresponds to the second question.
00:10
So for each setup we need to arrange this charge so that the free body diagram matches its arrangement.
00:16
So we have charge 1 with two forces acting in this direction and in this direction.
00:23
So we have to put another two charges to balance these things.
00:27
That is the idea.
00:29
So this can only be balanced by the second charge.
00:34
So this is charge 1.
00:37
So we can place the charge 2 here so that it balances this condition.
00:42
This is the charge 2 here.
00:45
Now we have the third charge which has to also be balanced.
00:50
So this means this is of the same charge.
00:54
If it is negative then this is also negative.
00:56
So the forces are acting consistently with that thing.
00:59
Now there is a bottom attraction.
01:02
So that means the other charge is supposed to be in this direction.
01:05
So this is supposed to be in here.
01:09
So this is the place you can put the other charge or you can put it here as well.
01:19
So this attraction is valid and there is repulsion.
01:22
So this is balanced by this force.
01:25
This is balanced by this force.
01:27
This is balanced by this force.
01:28
So this is the total location.
01:30
So according to the question there are directions.
01:32
So i'll give you the directions as well.
01:33
This is the second charge.
01:35
This is the first charge and this is the third charge.
01:38
So the third charge should be placed at f direction and the second charge should be placed at g direction to balance this thing.
01:47
This is the first part of the question.
01:49
Now coming to the second part of the question.
01:50
So we again have three charges and the direction is somewhat three dimensional.
01:57
So charge 1 is placed in here.
01:59
So it has a component in this direction this direction...