Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

Choose the correct statements from the following:

(A) A dielectric develops a net dipole moment in the presence of an electric field.
(B) Electrostatic potential is constant throughout the volume of the conductor.
(C) Electric field $\vec E$ depends upon the distance between two thin infinite long uniformly charged plane sheets held parallel to each other.
(D) Electric field due to a uniformly charged spherical shell is zero at all points inside the shell.
(E) Electric field is in the direction in which the potential decreases steepest.

Choose the correct answer from the options given below:

Options:

(A), (B) and (C) only

(B), (C) and (E) only

(A), (B), (D) and (E) only

(C), (D) and (E) only

Correct Answer:

(A), (B), (D) and (E) only

Explanation:

The correct answer is Option (3) → (A), (B), (D) and (E) only

(A) When a dielectric material is placed in a Electric field, its molecule align in the direction of the field, leading to development of net dipole moment.

(B) In electrostatics, the electric field is constant throughout the volume of a conductor because the charges within a conductor move to achieve equilibrium.

(D) This is consequence of Gauss law, which states that the electric field inside a spherical cell of uniform charge is zero at all points within the shell.

(E) The electric field is related to potential gradient it points in the direction of decreasing potential and its magnitude is proportional to the rate of decrease of potential.