Question

Calculate the polarisation vector of the material which has 100 dipoles per unit volume in a volume of 2 units. (a) 200 (b) 50 (c) 400 (d) 0.02 I got this question in class test. The origin of the question is Polarization in division Electric Fields in Material Space 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

Correct option is (a) 200 For explanation I would say: Polarisation vector P = N x p, where N = 100 and p = 2. On substituting we get P = 200 units.