A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field

A Bar Magnet Is Hung By A Thin Cotton Thread Physics Question

A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equillibrium state. The energy required to rotate it by 60⁰ is W. Now the torque required to keep the magnet in this new position is

Options

(a) W/√3
(b) √3W
(c) √3W/2
(d) 2W/√3

Correct Answer:

√3W

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

Related Questions:

  1. The wavelength of the matter wave is independent of
  2. Light from the constellation Virgo is observed to increase in wavelength by 0.4%
  3. Water rises to a height h in a capillary at the surface of earth. On the surface
  4. The drift velocity does not depend upon
  5. If by mistake voltmeter is connected in series and ammeter in parallel then

Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*