Question -
Answer -
Charge density of the long charged cylinderof length L and radius r is λ.
Another cylinder of same length surroundsthe pervious cylinder. The radius of this cylinder is R.
Let E be the electricfield produced in the space between the two cylinders.
Electric flux through the Gaussian surface is given byGauss’s theorem as,
Where, d = Distance of apoint from the common axis of the cylinders
Let q be the total chargeon the cylinder.
It can be written as
Where,
q =Charge on the inner sphere of the outer cylinder
∈0 = Permittivityof free space
Therefore, the electricfield in the space between the two cylinders is 