Magnetism Study Guide

For the test over magnetism, you should know:

• The proportionality relationships in Joule's law, Coulomb's law of magnetic force, and the magnetic field strength around a current carrying wire.
• Who showed the connection between electricity and magnetism?
• What is a shunt and where is it used?
• The resistance and circuit connections of voltmeters and ammeters
• The characteristics of the magnetosphere and earth's magnetic field.
• The orientation of domains in non-magnetized and magnetized iron.
• The meaning of magnetic declination.
• The similarities and differences between electric charges and magnetic poles
• The shape of the magnetic field around a straight, current carrying wire.
• The type of force between two parallel, current carrying wires
• What magnetic induction is and how it works.
• What a solenoid is, the shape and direction of its magnetic field, how to intensify the magnetic field.
• The difference between diamagnetism, paramagnetism, and ferromagnetism
• What creates magnetic fields?
• What is permeability and how does it relate to flux density?
• The unit of magnetic flux and flux density.
• How to use the left hand rule to figure magnetic field direction.
• And be able to calculate:
• How to convert a galvanometer of given properties to an ammeter or voltmeter
• The force between two parallel current carrying wires.