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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 Carnot engine A and B are operated in series. The engine A receives
- A uniform wire of resistance 9Ω is joined end-to-end to form a circle. Then
- In a common emitter transistor amplifier, the voltage gain is
- A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- A circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
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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