Answered: Which of the following force fields,…

Which of the following force fields, given belowin spherical polar coordinates, is not a conservative force field? [IISC. 2008] ê, (a) Sin0 (c) (d) cos Oê, – sin 0ế, (b)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter5: Electric Charges And Fields

Section: Chapter Questions

Problem 54P: Where must q3 of the preceding problem be placed so that the net force on it is zero?

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Concept explainers

Ising model of Ferromagnets

The Ising model is one of the easiest and most famous theoretical models for ferromagnetism in statistical mechanics. When a group of atomic spins aligns such that their magnetic moments are pointed in the same direction and produce a strong permanent magnetic moment in macroscopic size, the phenomenon is called ferromagnetism. The relative permeability of these magnets is greater than unity and increasing magnetization with the applied external field. Even in the absence of an external magnetic field, these substances retain spontaneous magnetization. An example of ferromagnets is iron.

Question

Which of the following force fields, given belowin spherical polar coordinates, is not a conservative force
field?
[IISC. 2008]
ê,
(a)
Sin0
(c)
(d) cos Oê, – sin 0ế,
(b)

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