1000+ Electrostatics Questions and Answers Pdf - 1

Question: 1

The electric field intensity on the surface of a charged conductor is

(A) directed along 45° to the surface

(B) directed tangentially to the surface

(C) directed normally to the surface

(D) zero

Question: 2

Electric potential is a

(A) dimensionless

(B) a vector quantity

(C) scalar quantity

(D) nothing can be said

Question: 3

Out of the materials given below, which has the highest dielectric strength?

(A) air

(B) glass

(C) mica

(D) oiled paper

Question: 4

If the relative permittivity of the medium increases, the electric intensity at a point due to a given charge

(A) remains the same

(B) decreases

(C) increases

(D) none of the above

Question: 5

A soap bubble is given a negative charge. Its radius

(A) information is incomplete to say anything

(B) remains unchanged

(C) decreases

(D) increases