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3 cards from this section. Quick, good the night before a test.
What is electromagnetic induction?
Think about how electricity can be generated from magnetism.
What does Faraday's Law of Induction state?
Look for the relationship between EMF and flux change.
What is the principle of electromagnetic induction?
Think about the meaning behind the term itself.
Faraday’s Law relates induced EMF to:
EMF is all about change in an electric field.
A circular loop of wire is placed in a changing magnetic field. If the magnetic flux through the loop increases at a constant rate, calculate the induced EMF if the rate of flux change is 0.5 Weber per second.
Remember the formula for induced EMF.
If a transformer steps down an input voltage of 120V to an output of 12V, what can you deduce about the number of turns in the primary and secondary coils if there are 100 turns in the primary coil?
Think about how voltages relate to the number of turns in coils.
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