Force on a Moving Charge in Uniform Magnetic and Electric Fields NEET Questions

Physics - Magnetic Effects of Current and Magnetism

Force on a Moving Charge in Uniform Magnetic and Electric Fields MCQ Questions


13.
When a charged particle moves through a uniform magnetic field, the work done by the magnetic force is

NEET - 2022

A.
Always positive
B.
Always negative
C.
Always zero
D.
Sometimes positive, sometimes negative
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ANSWER :
C. Always zero
14.
If a charged particle moves in a uniform magnetic field at an angle other than 0° or 90°, what type of path does it follow?
A.
Elliptical
B.
Circular
C.
Straight line
D.
Hyperbolic
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ANSWER :
B. Circular
15.
A charged particle moving in a uniform electric and magnetic field undergoes ______ motion.
A.
Uniform circular
B.
Rectilinear
C.
Oscillatory
D.
Random
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ANSWER :
C. Oscillatory
16.
Which of the following factors does NOT affect the force on a charged particle in a uniform magnetic field?
A.
Charge
B.
Magnetic field strength
C.
Velocity
D.
Mass
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ANSWER :
D. Mass
17.
The radius of the circular path of a charged particle in a uniform magnetic field depends on ______.
A.
Velocity
B.
Charge
C.
Magnetic field
D.
Magnetic flux
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ANSWER :
B. Charge
18.
The time period of a charged particle in a uniform magnetic field is independent of ______.
A.
Charge
B.
Magnetic field strength
C.
Velocity
D.
Mass
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ANSWER :
C. Velocity