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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
- Two identical capacitors each of capacitance 5 mF are charged potentials 2 kV and 1 kV
- 4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas
- A body travelling along a straight line traversed one-third of the total distance
- If the half-life of a material is 10 yr, then in what time, it becomes 1/4th part
- An electron revolves in a circle at the rate of 10¹⁹ rounds per second.
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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