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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: - Which one of the following statements is not correct in case of a semiconductor?
- A solenoid of length l metre has self inductance L henry. If number of turns
- Ohm’s law is not applicable except to
- The initial rate of increase of current, when a battery of emf 6 V is connected
- A long straight wire carrying current of 30A is placed in an external uniform
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is not correct in case of a semiconductor?
- A solenoid of length l metre has self inductance L henry. If number of turns
- Ohm’s law is not applicable except to
- The initial rate of increase of current, when a battery of emf 6 V is connected
- A long straight wire carrying current of 30A is placed in an external uniform
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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