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2 cards from this section. Quick, good the night before a test.
What happens to the galvanometer when a magnet is moved towards a coil?
Think about the flow of electricity when there’s a change.
Define electromagnetic induction in one sentence.
Remember, it's about two different types of phenomena.
What does Faraday's first experiment demonstrate?
Think about the role of movement in the experiment.
True or False: The direction of induced current always opposes the change in magnetic flux.
Remember Lenz's law when assessing the induced current.
Consider a setup with two loops of wire. If the current in the first loop decreases rapidly, describe the current induced in the second loop based on Lenz's Law.
Think about how changing currents affect magnetic fields.
You have a coil of wire rotating in a magnetic field. If the speed of rotation is doubled, what happens to the induced emf?
Consider the relationship between speed and induced current.
4 more questions in this section. Enroll free to practise them all.
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