A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane

A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane in the space containing magnetic induction B=4×10⁻⁵ T. The work done in rotating the magnet slowly from a direction parallel to the field to a direction 45⁰ from the field, is (in joule)

Options

(a) 0
(b) 0.2
(c) 0.03
(d) 0.02

Correct Answer:

0.03

Explanation:

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

admin:

Related Questions

  1. In a franhofer diffraction experiment at a single slit using a light of wavelength
  2. The net electric force on a charge of +3μC at the mid-point on the line joining two
  3. A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
  4. The excitation potential of hydrogen atom in the first excited state is
  5. The angle between the two vectors A = 3i+4j+5k and B = 3i+4j-5k will be