Electric Flux NEET Questions

Physics - Electrostatics

Electric Flux MCQ Questions


7.
A point charge +Q is placed at the centre of a cube. The electric flux through one face of the cube is:
A.
Q/(8ε₀)
B.
Q/(4ε₀)
C.
Q/ε₀
D.
Q/(6ε₀)
😑 View Answer Rough Work Error
ANSWER :
D. Q/(6ε₀)
8.
If a point charge q is placed at one corner of a cube, the electric flux through the cube is:
A.
q/(8ε₀)
B.
q/(2ε₀)
C.
q/ε₀
D.
q/(6ε₀)
😑 View Answer Rough Work Error
ANSWER :
A. q/(8ε₀)
9.
The total electric flux through a closed surface containing no charge is:
A.
Equal to the surface area
B.
Infinite
C.
Zero
D.
Equal to ε₀
😑 View Answer Rough Work Error
ANSWER :
C. Zero
10.
A charge q is enclosed by a Gaussian surface. If the surface area is doubled keeping the charge same, the electric flux through the surface will:
A.
Become four times
B.
Double
C.
Remain the same
D.
Reduce to half
😑 View Answer Rough Work Error
ANSWER :
C. Remain the same
11.
A point charge of 8.85 × 10⁻¹² C is placed at the centre of a sphere. The total electric flux through the sphere is:
A.
1 N m² C⁻¹
B.
8.85 × 10⁻¹² N m² C⁻¹
C.
10 N m² C⁻¹
D.
0.5 N m² C⁻¹
😑 View Answer Rough Work Error
ANSWER :
A. 1 N m² C⁻¹
12.
The electric flux through a Gaussian surface that encloses an electric dipole is:
A.
Equal to twice the charge
B.
Equal to the dipole moment
C.
Half the value of one charge
D.
Zero
😑 View Answer Rough Work Error
ANSWER :
D. Zero