LINKS:
Great pictures and explanations into basic Magnetism and Induction.
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Magnetic Field Line Applets:
Single
Bar Magnetic ; Switchable
Poles
Compass
and Magnetic Fields from Electricity (Applet) - click on the switch
and see how the compass moves in the magnetic field.
Induced
Emf within a Solenoid (Applet) - Like how we did in class. Unfortunately
you can't switch the magnet's direction.
Lenz's
Law (Applet) - Move a magnet into a wire coil. The blue shows the
induced magnet field trying to oppose the bar magnet. Then you can see
the induced current in the coil.
Induced
Current when Area is Changed (Applet)
Charged
Particle in a Magnetic Field (Applet) - watch the path.
How
a Generator Works (Applet) - See how the maximum emf occurs when the
coil breaks the field lines. If you slow it down, it's easier to see.
Generator
2 (Applet) - Not as easy to see, but notice the permanent magnets
the rotor is moving inside.
How
a Motor Works (Applet) - Notice the commutator and how it keeps the
electromagnet always in the same direction.
Construction of a DC
Motor - close to what we made in class.
How
a Transformer Works (Applet) - You can change the primary voltage
and the number of coils for both primary and secondary.
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