PHYS208 PHYS208 3/27 Class

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Dipoles in a Field


How do we get work out of a magnetic field?

Single Charge Circulating in a Uniform Magnetic Field

No work done by magnetic field.

Concept Check

Force on Current Loop in a Magnetic Field

No net force on loop.

Torque on Current Loop in a Magnetic Field

Yes net torque on loop.

Torque on Electric Dipole in an Electric Field

Torque on an electric dipole

Magnetic Dipole Moment of a Current Loop

Torque on Magnetic Dipole in a Magnetic Field

Torque on a magnetic dipole

DEMONSTRATION: Galvanometer, more dc Motor

Animation of dc Motor

Thought for the Day

Quiz 5: RC Circuits (Solution)

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Last updated March 30, 1998.
Copyright George Watson, Univ. of Delaware, 1997.