
Q. An infinitely long thin cylindrical shell has its axis coinciding with the z-axis. It carries a surface charge density 𝜎0cos𝜙, where 𝜙 is the polar angle and 𝜎0 is a constant. The magnitude of the electric field inside the cylinder is

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Q. An infinitely long thin cylindrical shell has its axis coinciding with the z-axis. It carries a surface charge density 𝜎0cos𝜙, where 𝜙 is the polar angle and 𝜎0 is a constant. The magnitude of the electric field inside the cylinder is
Ans: