Target Exam

CUET

Subject

Physics

Chapter

Communication

Question:

Which of the following statements are correct ?

A. The electric field inside uniformly charged spherical shell is zero.
B. In a non-polar molecule, the centres of positive and negative charges do not coincide.
C. In a uniform electric field, a dipole experiences a torque but experiences no net force.
D. When a dielectric is inserted fully between the plates of a capacitor, then its capacitance decreases.

Choose the correct answer from the options given below:

Options:

A and C only

A, B and D only

B and D only

B, C and D only

Correct Answer:

A and C only

Explanation:

The correct answer is Option (1) → A and C only

(A) According to Gauss law, the electric field inside a uniformly charged spherical cell is zero because there is no net charged enclosed within the Gaussian surface.

(C) In a uniform electric field, the forces acting on the positive and negative charges are equal in magnitude and opposite in direction and hence the net force is zero.