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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
- Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes
- A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm
- An electron in potentiometer experiences a force 2.4×10⁻¹⁹N. The length of potentiometer
- In a semiconductor
- An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
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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