An electricity and magnetism problem by Ronak Agarwal

Electricity and Magnetism Level 3

Find the force on a uniformly charged hollow sphere of radius $1m$ and surface charge density $\sigma = 0.5\quad \mu C/{ m }^{ 2 }$ by a point sized particle of charge $q={ 10 }^{ -3 }$ columbs placed at a distance $5 m$ from the centre of the sphere

Take ${ \varepsilon }_{ 0 }$ $= 8.85\times { 10 }^{ -12 }\quad { C }^{ 2 }/N{ M }^{ 2 }$