00:03
Alright, so we are given that an infinitely long cylinder of radius r is equals to 3 cm carries a uniform charge density rho is equals to 17 microcoulombs per meter cube.
00:22
So you have to calculate the electric field at a distance of small r is equals to 18 cm from the axis of cylinder.
00:33
So let get started with solution here.
00:37
So what have we have been given in the question let get understand it first.
00:42
So let suppose this is nothing but what the cylinder and this is what the axis of cylinder.
00:51
This is what the axis of cylinder.
00:55
Now radius of cylinder is nothing but capital of r.
00:58
So from this axis of cylinder up to the point p let say which is at a distance of small r we have to find the electric field.
01:09
So it can be in any directions means either rightward either the leftward but basically in the rightward direction it will tends to infinity that is why it will be in the point of p here.
01:24
So let's have a look to the solution.
01:27
So first of all what is the law which we are going to use that is the gauss law...