Torque on a Magnetic Dipole in a Uniform Magnetic Field NEET Questions

Physics - Magnetic Effects of Current and Magnetism

Torque on a Magnetic Dipole in a Uniform Magnetic Field MCQ Questions


7.
The torque on a magnetic dipole in a uniform magnetic field depends on:
A.
Magnetic moment only
B.
Magnetic field strength only
C.
Both M and B
D.
None of these
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ANSWER :
C. Both M and B
8.
The torque on a current-carrying loop in a uniform magnetic field does not depend on:
A.
Shape of the loop
B.
Current in the loop
C.
Number of turns
D.
Radius of the loop
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ANSWER :
D. Radius of the loop
9.
The potential energy of a magnetic dipole in a uniform magnetic field is minimum when:
A.
θ = 0°
B.
θ = 90°
C.
θ = 180°
D.
θ = 270°
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ANSWER :
A. θ = 0°
10.
A magnetic dipole in a uniform magnetic field experiences:
A.
Only torque
B.
Only force
C.
Both force and torque
D.
Neither force nor torque
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ANSWER :
C. Both force and torque
11.
A magnetic needle suspended freely in a uniform magnetic field will experience:
A.
Only force
B.
Only torque
C.
Both force and torque
D.
Neither force nor torque
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ANSWER :
C. Both force and torque
12.
When a current-carrying loop is placed in a uniform magnetic field, it experiences:
A.
Both force and torque
B.
Only torque
C.
Neither force nor torque
D.
Zero
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ANSWER :
B. Only torque