The figure gives the potential energy U of a magnetic dipole in an external magnetic field B, as a function of angle between the directions of B and the dipole moment. The vertical axis scale is set by Us = 2.2 × 10-4 J. The dipole can be rotated about an axle with negligible friction so as to change . Counterclockwise rotation from @= 0 yields positive values of p, and clockwise rotations yield negative values. The dipole is to be released at angle =0 with a rotational kinetic energy of 6.3 x 10-4 J, so that it rotates counterclockwise. To what maximum value of will it rotate? Number i Units -180° U (10-4J) U₁ -U₂ ° (degrees) 0 180°

The figure gives the potential energy U of a magnetic dipole in an external magnetic field B, as a function of angle between the directions of B and the dipole moment. The vertical axis scale is set by Us = 2.2 × 10-4 J. The dipole can be rotated about an axle with negligible friction so as to change . Counterclockwise rotation from @= 0 yields positive values of p, and clockwise rotations yield negative values. The dipole is to be released at angle =0 with a rotational kinetic energy of 6.3 x 10-4 J, so that it rotates counterclockwise. To what maximum value of will it rotate? Number i Units -180° U (10-4J) U₁ -U₂ ° (degrees) 0 180°

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 75PQ

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