A long cylinder of radius a has volume charge density ρ = ρ₀r³ for r≤a and ρ=0 for r>a, where r is distance from the cylinder axis.

Physics · Electrostatic

JEE MainsAdvanced

A long cylinder of radius a has volume charge density ρ = ρ₀r³ for r≤a and ρ=0 for r>a, where r is distance from the cylinder axis.

Sub-question 1

The charge contained in l length of the cylinder for r > a is :

Options

Sub-question 2

The electric field at r < a.

Options