A particle of mass 2kg and charge 1 mC is projected vertically with a velocity 10 m per s. There is a uniform horizontal electric field of 10^4 N/C. What is the time of flight of the particle?

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