Explore topic-wise MCQs in Physics.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Flux coming out from a balloon of radius 10 cm is 1.0*103 N.m2.C-1-1. If the radius of the balloon is doubled, the flux coming out from the balloon will be _______

A. 0.5 times
B. 2 times
C. Same
D. 4 times
Answer» D. 4 times
Discussion
2.

Which of the following law explains the relation between the charge inside a surface and electric flux?

A. Gauss’s Law
B. Coulomb’s Law
C. Faraday’s Law
D. Pascal’s Law
Answer» B. Coulomb’s Law
Discussion
3.

Two separate charges q and 10q are placed inside two different spheres. In which case, the electric flux will be greater?

A. Flux will be same in both the cases
B. 1st sphere
C. 2nd sphere
D. No flux in any of the spheres
Answer» D. No flux in any of the spheres
Discussion
4.

If a charge is placed outside a closed surface, flux due to that charge inside the surface will be ________

A. Positive
B. May be positive or negative, depending on the nature of the charge
C. Negative
D. Zero
Answer» E.
Discussion
5.

Flux linked to a surface is said to be positive if the flux lines are coming out of the surface. The statement is ______

A. True
B. False
Answer» B. False
Discussion
6.

Electric flux will be maximum if the angle between the field lines and area vector is ______

A. 45 degree
B. 135 degree
C. 90 degree
D. 0 degree
Answer» E.
Discussion
7.

Which one is the correct expression of electric flux?

A. ∫ \(\vec{E}.d\vec{s}\)
B. ∫ \(\vec{E^2}.d\vec{s}\)
C. ∫ \(\vec{E}^{-1}.d\vec{s}\)
D. ∫ \(\vec{E}.d\vec{l}\)
Answer» B. ∫ \(\vec{E^2}.d\vec{s}\)
Discussion
8.

What is the unit of electric flux?

A. V/m
B. N/m
C. V*m
D. N/Coulomb
Answer» D. N/Coulomb
Discussion
9.

What is the dimension of electric flux?

A. [M L3 T-3 I-1]
B. [M L2 T-3 I-1]
C. [M L3 T-3 I1]
D. [M L3 T3 I-1]
Answer» B. [M L2 T-3 I-1]
Discussion