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A ponit charge q is kept at the centre of the cylinder of length L and radius a> calculate the flux throuugh the curved surface of the cylinder
Consider the x axis to be along the axis and point charge at the origin. Now take an area element at height x above the charge dA= 2πrdx where r= (R^2+x^2)^1/2 and normal component of electric field will be Ecosø where E=(1/4π€)q/r^2 and cosø=R/r now integrate this (scalar) .. from x=-h to x=+h and you will get the answer.
Consider the x axis to be along the axis and point charge at the origin.
Now take an area element at height x above the charge dA= 2πrdx
where r= (R^2+x^2)^1/2
and normal component of electric field will be Ecosø where E=(1/4π€)q/r^2
and cosø=R/r
now integrate this (scalar) .. from x=-h to x=+h and you will get the answer.
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