Electric Potential (Calculation for a point charge, Electric Dipole and System of Charges... ) NEET Questions

Physics - Electrostatics

Electric Potential (Calculation for a point charge, Electric Dipole and System of Charges... ) MCQ Questions


1.
The electrostatic potential at a point is defined as:
A.
Potential energy of a unit positive charge at infinity
B.
Work done by the electric field in moving a unit charge
C.
Work done by an external force in bringing a unit positive charge from infinity to that point
D.
Force per unit charge at that point
😑 View Answer Rough Work Error
ANSWER :
C. Work done by an external force in bringing a unit positive charge from infinity to that point
2.
The SI unit of electric potential is:
A.
Joule per coulomb-metre
B.
Coulomb per joule
C.
Volt (V)
D.
Newton per coulomb (N/C)
😑 View Answer Rough Work Error
ANSWER :
C. Volt (V)
3.
The electrostatic force between two stationary charges is a:
A.
Time-dependent force
B.
Conservative force
C.
Frictional force
D.
Non-conservative force
😑 View Answer Rough Work Error
ANSWER :
B. Conservative force
4.
Work done by an electrostatic field in moving a charge from one point to another depends on:
A.
Only the initial and final positions
B.
Only the magnitude of the charge
C.
Only the path taken
D.
Both the path and end positions
😑 View Answer Rough Work Error
ANSWER :
A. Only the initial and final positions
5.
The actual value of electrostatic potential at a point is:
A.
Undetermined to within an additive constant; only differences are physically significant
B.
A unique fixed value at every point
C.
Always positive
D.
Always equal to the electric field magnitude
😑 View Answer Rough Work Error
ANSWER :
A. Undetermined to within an additive constant; only differences are physically significant
6.
The electric potential at distance r from a point charge Q in vacuum is given by:
A.
V = Q/(4πε₀r³)
B.
V = Qr/(4πε₀)
C.
V = Q/(4πε₀r²)
D.
V = Q/(4πε₀r)
😑 View Answer Rough Work Error
ANSWER :
D. V = Q/(4πε₀r)