Electric Field and Potential NDA Questions

NDA Physics

Electric Field and Potential MCQ Questions


13.
What is the relationship between electric field lines and equipotential surfaces?
A.
They are parallel
B.
They are perpendicular
C.
They are collinear
D.
They intersect at angles
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ANSWER :
B. They are perpendicular
14.
What is true about the work done in moving a charge along an equipotential surface?
A.
It is maximum
B.
It is minimum
C.
It is zero
D.
It depends on the charge
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ANSWER :
C. It is zero
15.
In which direction do equipotential surfaces move relative to the source charge?
A.
Parallel to the charge
B.
Away from the charge
C.
Toward the charge
D.
Both toward and away from the charge
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ANSWER :
D. Both toward and away from the charge
16.
What does the spacing of equipotential lines indicate?
A.
The magnitude of the charge
B.
The strength of the electric field
C.
The speed of the charge
D.
The direction of the electric field
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ANSWER :
B. The strength of the electric field
17.
What is true about the electric field inside a conductor in electrostatic equilibrium?
A.
It is maximum
B.
It is zero
C.
It is uniform
D.
It varies with position
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ANSWER :
B. It is zero
18.
Where does the charge reside in a conductor under electrostatic conditions?
A.
Inside the conductor
B.
On the surface of the conductor
C.
Evenly throughout the conductor
D.
In the center of the conductor
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ANSWER :
B. On the surface of the conductor