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A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment µ is given by
Options
(a) qvR²
(b) qvR² / 2
(c) qvR
(d) qvR / 2
Correct Answer:
qvR² / 2
Explanation:
Magnetic moment, m = IA
qv / 2πR (πR²) = qvR / 2
[ I = q/T and T = 2πR / v ]
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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
- If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone
- A wire elongates by l mm when a load W is hanged from it. If the wire goes over
- An electron moving in a circular orbit of radius r makes n rotations per second.
- A charge of 100 μC has a potential at a distance of 9 m is
- A source of light is placed at a distance of 50 cm from a photocell and the stopping
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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