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2 cards from this section. Quick, good the night before a test.
What is the direction of the magnetic field around a conductor carrying current?
Think about how you hold your right hand.
If two parallel currents flow in the same direction, what happens?
Consider how magnets work.
What happens when two parallel conductors carrying the same direction of current?
Think about how opposites attract in magnets.
Ampere's Law relates magnetism and electric current. True or False?
Look at the principles of electromagnetism.
Two parallel wires carrying 10 A each are 0.2 m apart. Calculate the force per unit length acting on each wire.
Don't forget the units!
If one of the currents is reversed, how does that change the calculated force?
Think about how switching magnet poles affects attraction and repulsion.
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