Hey everyone! Sorry for disturbing again,I again have a doubt!
It will be very helpful, If you help me clearing it out.
Now lets jump into the question!
A cone is placed and a charge is placed at a distance of a m from the base of the cone as shown in the figure.
For our ease, Lets take , , ( height of the cone).
What we need to find is the flux due to the charge q through the cone!
Here it goes, First of all, lets find the radius of the small disc we took,
Using Proportionality in triangles, we have
. This is the radius of the disc.
So the elemental area = .
Now Our flux is like this,
After evaluating the integral, we get
But unfortunately our comes out to be .
Thanks in Advance!