Two spherical cavities of radii a and b are hollowed out

Last updated: 6/3/2023

Two spherical cavities of radii a and b are hollowed out from the interior of a neutral conducting sphere of radius R At the centre of each cavity a point charge is placed Call these charges qa and qb a Find the surface charges a b and OR b What is the field outside the conductor c What is the field within each cavity d What is the force on qa and qb e Which of these answers would change if a third charge qc were brought near the conductor 9a R b ab