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3 cards from this section. Quick, good the night before a test.
Define magnetic flux.
What is the formula for magnetic flux?
State Faraday's Law of Induction.
What does the emf depend on?
What does magnetic flux measure?
Think about the relationship between magnetic fields and area.
True or False: Lenz's Law states induced current flows in the same direction as the change in magnetic flux.
Consider how induced currents behave.
A coil with an area of 0.1 m² is in a magnetic field of 0.3 T. What is the magnetic flux when the field is perpendicular to the area?
Use the formula for magnetic flux.
Two coils are placed close together. If coil 1 has a mutual inductance of 3 H, and the current in coil 2 changes at a rate of 4 A/s, what is the induced emf in coil 1?
Recall the formula for mutual inductance and its relationship to induced emf.
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