Concept Day---Tuesday#!#Electric Field on the axis of the ring

Electric field due to ring

A ring of radius a contains a charge q distributed. uniformly ober its length. Find the electric field at a point. on the axis of the ring at a distance x from the centre.

Continuous charge distribution(linear, surface and volumetric), Electric field due to slender rod, Electric field on the axis of a uniformly charged ring and disk

A ring of radius R has charge -Q distributed uniformly over it. Calculate the charge that should be placed at the center of the ring such that the electric field becomes zero at apoint on the axis of the ring at distant R from the center of the ring.

A uniformly charged ring of radius R is rotated about its axis with constant linear speed v of each of its particle. The ratio of electric field to magnetic field at a point P on the axis of the ring distant x=R from centre of ring is ( c is speed of light )

A conducting ring of radius 40 cm has a charge of 5 xx 10^(-9) C uniformly distributed over it. Calculate the electric field intensity at a point P, 40 cm away from the centre on the axis of the ring.