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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 ๐0cos๐, where ๐ is the polar angle and ๐0 is a constant. The magnitude of the electric field inside the cylinder is
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-759.png)
Ans:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/image-19.png)