Magnetism

1
Magnetism

• Mr. Rodichok
• Regents Physics

2
General Characteristics

• Magnetic Materials
• Temporary Magnet
• Permanent Magnet
• Dipoles

Ferromagnetic materials include iron, cobalt
nickel
Domains areas of similar magnetic direction
Ferromagnetic material will become magnetic in
the presence of another magnet
Ferromagnetic material that has magnetic
properties
All magnets have two poles (polarity). North and
South poles
3
Magnetic Forces

• Two Like Poles
• Two Unlike Poles
• Either Pole and Ferromagnetic Material

4
Magnetic Fields

• Dipole
• Earth
• Like Poles
• Unlike Poles

5
Electromagnetism

• Current
• Forces on current carrying wires
• Forces on moving charges

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Application of Electromagnetism

• Solenoid (Electromagnet)
• Ammeter/ Voltmeter
• Motor / Generator