Field Of Uniformaly Charged Disc

A point charge placed on the axis of a uniformly charged disc experiences a force f due to the disc. If the charge density on the disc sigma is, the electric flux through the disc, due to the point charge will be

A point charge placed on the axis of a uniformly charged disc experiences a force f due to the disc. If the charge density on the disc sigam is, the electric flux through the disc, due to the point charge will be

A charge q is placed at the some distance along the axis of a uniformly charged disc of surface cahrge density sigma . The flux due to the charge q through the disc is phi . The electric force on charge q exerted by the disc is

Find the electric potential at the axis of a uniformly charged disc and use potential to find the electric field at same point.

Calculate electric field at a point on axis, which at a distance x from centre of uniformly charged disc having surface charge density sigma and R which also contains a concentric hole of radius r.

At which distance along the centre axis of a uniformaly charged plastic disc of radius R is the magnitude of the electric field equal to one-half the magnitude of the field at the centre of the surface of the disc ?

At which distance along the centre axis of a uniformaly charged plastic disc of radius R is the magnitude of the electric field equal to one-half the magnitude of the field at the centre of the surface of the disc ?