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A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole It:
Options
(a) will become rigid showing no movement
(b) will stay in any position
(c) will stay in north-south direction only
(d) will stay in east-west direction only
Correct Answer:
will stay in any position
Explanation:
Since magnetic field is in vertical direction and needle is free to rotate in horizontal plane only so magnetic force cannot rotate the needle in horizontal plane so needle can stay in any position.
Related Questions: - A gramophone record is revolving with an angular velocity ?. A coin is placed at
- For the normal eye, the cornea of eye provides a converging power of 40D
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A gramophone record is revolving with an angular velocity ?. A coin is placed at
- For the normal eye, the cornea of eye provides a converging power of 40D
- A ball is moving in a circular path of radius 5 m.If tangential acceleration
- If ∆U and ∆W represent the increase in internal energy and work done by the system
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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