Question

The ratio of the orbital dipole moment to the orbital angular moment is given by (a) e/m (b) –e/m (c) e/2m (d) –e/2m I got this question in an online quiz. This question is from Magnetic Dipole in division Magnetic Forces and Materials of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

Right choice is (d) –e/2m To explain I would say: The orbital dipole moment is given by M = 0.5 x eVangx r^2 and the orbital angular moment is given by Ma = m x Vangx r^2. Their ratio M/Ma is given by –e/2m, the negative sign indicates the charge of electron.