Physics Electric and Magnetic Fields

Vocabulary flashcards for electric and magnetic fields.

Corona Discharge

A stream of air particles flowing away from a sharp point due to ionization caused by a strong electric field.

Parallel to a Uniform Electric Field

Moving in the same direction as the electric field.

Antiparallel to a Uniform Electric Field

Moving in the opposite direction to the electric field.

Cyclotron

A particle accelerator that uses an electric field between dees to accelerate ions and a magnetic field to make them move in a circular path.

Uniform Circular Motion

Motion at constant speed in a circular path.

Lenz's Law

An induced current has a magnetic field that acts in a direction that opposes the change in magnetic flux that induced the current.

Eddy Currents

Circular currents produced in a conductor when the conductor experiences a change in magnetic flux.

Generator

A device with a conducting loop rotating between fixed magnets to produce electric current.

Transformer

A device used in electrical circuits to step up or step down the voltage.