Two point charges are 3m apart and their combined charge is 8c. The force of repulsion between them is 0.012N charges are a). 4c,4c b). 6c,2c c). 5c,3c d). 7c,1c

Electrostatics question based on earthing of spherical shell

an object has a charge of 2c and gains 10^19 electrons. the net chaarge on the object becomes??

A wire with a linear charge density lambda forms a quarter of a cjrclenof radius R and is placed asa shown in thefigure with its centre of curvature at the origin O the electric field at O will be

Find the value of q so that system remains in equilibrium.. figure attached below

Find the value of q so that system remains in equilibrium