MCQ
Vibration magnetometer works on the principle of
- ✓Torque acting on the bar magnet
- BForce acting on the bar magnet
- CBoth the force and the torque acting on the bar magnet
- DNone of these
✓
Answer
Correct option: A.
Torque acting on the bar magnet
a
(a) When the bar magnet in the deflection magnetometer is displaced, a torque acts on it due to the horizontal earth's magnetic filed. So the magnet vibrates and alligns parallel to the earth's magnetic field.
(a) When the bar magnet in the deflection magnetometer is displaced, a torque acts on it due to the horizontal earth's magnetic filed. So the magnet vibrates and alligns parallel to the earth's magnetic field.
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