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4 cards from this section. Quick, good the night before a test.
What are the two poles of a magnet?
Think about how magnets are named.
What happens when you bring two north poles of magnets together?
Recall the attraction or repulsion between like poles.
What are the two types of poles on a magnet?
Think about how compass directions are named.
Opposite poles of magnets repel each other.
Recall how magnets interact.
A wire carries a current of 3A and is placed in a magnetic field of 2T at a 30-degree angle. Calculate the magnetic force exerted on the wire.
Make sure to use the sine of the angle for calculation.
If you have a magnet that is demagnetized by heating, describe how you would magnetize it again.
Think about what process aligns those domains.
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