Accelerate NEET 2020: Electrostatics Class 6 (03.09.2019)

Figure shows the electric lines of force emerging from a charged body. If the electric field at A and B are E_A and E_B respectively and if the distance between A and B is r, then

A thin conducting ring of radius R is given a charge +Q. The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E. The electric field at the centre due to the charge on the part ACDB of the ring is

A hollow metallic sphere of radius 10 cm is given a charge of 3.2 × 10^–9C. The electric field intensity at a point 4 cm from the center is

A metallic solid sphere is placed in a uniform electric field. The lines of force follow the path(s) shown in figure as

Two charged spheres of radius  and  respectively are charged and joined by a wire. The ratio of electric field of the spheres is