Electric Field (Electric field due to a Point Charge, Electric Field Lines... ) NEET Questions

Physics - Electrostatics

Electric Field (Electric field due to a Point Charge, Electric Field Lines... ) MCQ Questions


13.
Electrostatic field lines do not form closed loops because:
A.
Electrostatic field is conservative in nature
B.
Of Gauss's law
C.
Of quantisation of charge
D.
Electric field is a vector
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ANSWER :
A. Electrostatic field is conservative in nature
14.
The concept of electric field lines was introduced by:
A.
Coulomb
B.
Gauss
C.
Newton
D.
Faraday
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ANSWER :
D. Faraday
15.
In a uniform electric field, the field lines are:
A.
Radially outward
B.
Concentric circles
C.
Parallel, equispaced straight lines
D.
Radially inward
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ANSWER :
C. Parallel, equispaced straight lines
16.
Electric field lines around a single positive point charge are:
A.
Closed loops
B.
Parallel straight lines
C.
Radially outward
D.
Radially inward
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ANSWER :
C. Radially outward
17.
For an electric dipole, the field lines:
A.
Start and end on the positive charge
B.
Are parallel straight lines
C.
Go from positive to negative charge showing mutual attraction
D.
Form closed loops around the charges
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ANSWER :
C. Go from positive to negative charge showing mutual attraction
18.
The tangent to an electric field line at any point gives:
A.
The potential at that point
B.
The magnitude of electric field at that point
C.
The charge at that point
D.
The direction of electric field at that point
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ANSWER :
D. The direction of electric field at that point