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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 wire elongates by l mm when a load W is hanged from it. If the wire goes over
- If the ratio of amplitude of two superposed waves is 2:1, then the ratio of maximum
- A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
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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 wire elongates by l mm when a load W is hanged from it. If the wire goes over
- If the ratio of amplitude of two superposed waves is 2:1, then the ratio of maximum
- A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- Initial pressure and volume of a gas are P and 800cc. If the final volume is 100cc
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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