Class 12 Physics Quick Practice
Try real questions from active chapters in this subject.
Question 1 of 5
In a region of constant potential
A
the electric field shall necessarily change if a charge is placed outside the region.
B
there can be charge inside the region.
C
the electric field is zero
D
the electric field is uniform
Correct answer: C
Question 2 of 5
A positively charged particle is released from rest in a uniform electric field. The electric potential energy of the charge
A
decreases because the charge moves opposite to the electric field.
B
decreases because the charge moves along the electric field.
C
increases because the charge moves along the electric field.
D
remains a constant because the electric field is uniform.
Correct answer: B
Question 3 of 5
Consider a uniform electric field in the z direction. The potential is not a constant
A
on the x-y plane for a given z.
B
for any y for a given z.
C
for any x for a given z.
D
in all space.
Correct answer: D
Question 4 of 5
If a conductor has a potential V ≠0 and there are no charges anywhere else outside, then
A
there must be charges inside the surface.
B
there must be charges only on the surface.
C
there will be some charge in the body of the conductor.
D
there must be charges on the surface or inside itself.
Correct answer: D
Question 5 of 5
S2: At any point inside the sphere, the electrostatic potential is 100 V. Which of the following is a correct statement?
A
S1 is true, S2 is also true but the statements are independent.
B
S1 is true, S2 is also true and S1 is the cause of S2.
C
Both S1 and S2 are false.
D
S1 is true but S2 is false.
Correct answer: B
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