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4 cards from this section. Quick, good the night before a test.
What are magnetic fields?
Think about what surrounds a magnet.
What happens when opposite poles of magnets come together?
Remember the term 'Opposites Attract'.
What occurs when like poles of magnets come together?
Think 'Like poles...'!
True or False: The Earth's magnetic field is tilted.
Consider how compasses work.
A wire carries a current of 5 A in a magnetic field of strength 0.2 T at an angle of 30°. What is the force on the wire?
Make sure to identify each value before plugging them in.
Describe a scenario where electromagnetic induction can be utilized effectively. Explain how it works.
Think of how power plants generate electricity.
5 more questions in this section. Enroll free to practise them all.
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