Lesson 9: Magnetism and Current in Magnetic Fields

Oersted Effect

Magnetism is produced from the movement of electric charge

Magnetic Field

The space around magnet storing magnetic energy.

Magnetic Field Direction

the direction of a force on a N-pole placed at that point

magnetic field lines

lines that map out the magnetic field around a magnet

Solenoid

Coil of wire producing magnetic field when current flows.

Current-Carrying Conductor (c.c.c.)

Wire through which electric current flows.

Horse-shoe Magnet

Permanent magnet shaped like a horseshoe.

Force on c.c.c.

Depends on current, length, and magnetic field strength.

Sts electromagnet

Scrap yards to lift metal scrap, electric motors and electromagnetic relays

Sts electromagnetism

The motor, electromagnetic relay and the loudspeaker