Explore topic-wise MCQs in Physics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Identify the dimension of electrostatic potential energy from the following.

A. ML<sup>2</sup>T<sup>-3</sup>A<sup>-2</sup>
B. ML<sup>3</sup>T<sup>-2</sup>A<sup>-1</sup>
C. M<sup>-1</sup>L<sup>2</sup>T<sup>-3</sup>A
D. ML<sup>2</sup>T<sup>-3</sup>A<sup>-1</sup>
Answer» E.
Discussion
2.

Electrostatic potential energy can be negative.

A. True
B. False
Answer» B. False
Discussion
3.

There are two charges Q1 = +q and charge Q2 = +2q. From the initial point (Q), Q1 is at a distance of r and Q2 is at a distance 2r. Which charge (Q1 or Q2) will have higher electrostatic potential energy?

A. Q1
B. Both will have the same energy
C. Q2
D. The information given is not enough to determine
Answer» C. Q2
Discussion
4.

Two isolated metallic spheres, one with a radius R and another with a radius 5R, each carries a charge q uniformly distributed over the entire surface. Which sphere stores more electric potential energy?

A. The sphere with radius 5R
B. Both of the spheres will have the same energy
C. The sphere with radius R
D. Initially it will be the sphere with radius 5R then it will shift to the sphere with radius R
Answer» D. Initially it will be the sphere with radius 5R then it will shift to the sphere with radius R
Discussion
5.

Pick out the expression of electric potential energy from the following.

A. U = ( frac {1}{(4 pi varepsilon_o)} times [ frac {q_1q_2}{r} ] )
B. U = 1 (4 <sub>o</sub>) [ ( frac {q_1q_2}{r} ) ]
C. U = ( frac {1}{(4 pi varepsilon_o)} times [ frac {q_1}{q_2}{r} ] )
D. U = ( frac {1}{(4 pi varepsilon_o)} ) [q<sub>1</sub>q<sub>2</sub>]
Answer» B. U = 1 (4 <sub>o</sub>) [ ( frac {q_1q_2}{r} ) ]
Discussion