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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 focal length of a lens is 10 cm. What is power of a lens in dioptre?
- A cylindrical capacitors has charge Q and length L. If both the charge and length
- The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
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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 focal length of a lens is 10 cm. What is power of a lens in dioptre?
- A cylindrical capacitors has charge Q and length L. If both the charge and length
- The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
- A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion
- The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
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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