Q2: A solid conducting sphere of radius 20 cm carries a net positive charge 2µC. A conducting spherical shell of inner radius 50 cm and outer radius 60 cm is concentric with the solid sphere and carries a net charge -6µC. Using Gauss's law, find the electric field at P2 and P, in the following Figure and the charge distribution on the shell when the entire system is in electrostatic equilibrium. -6µC 40 mm P1 2uC 80 mm P2

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Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.