00:01
Here, first we need to calculate the value of angle theta here.
00:05
Equation for theta is equal to tan inverse of a by b.
00:11
The value of a and b are given in the question.
00:14
So this is equal to tan inverse of value of a is 38 cm divided by the value of b is 50 cm.
00:26
Upon solving this we will get the value of theta to be 37 .23 degree.
00:32
Now here from the diagram we can see that here the value of r will be equal to square root of a square plus b square by using pythagoras theorem.
00:46
So this is equal to square root of value of a is 38 cm its square plus value of b is 50 cm its square.
00:54
Upon solving this we will get the value of r to be 62 .8 cm or we can say that this is equal to 0 .628 meter because 1 meter is equal to 100 cm.
01:09
Now here we need to calculate the value of electric field at x -axis and y -axis separately.
01:16
So first consider the x -axis.
01:18
At x -axis we have the total value of electric field e is equal to the constant k into charge q3 divided by b by 2 the whole square minus k into the charge q1 multiplied by cos theta divided by r square...