Category: Electromagnetism
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What is this? 041
Test your knowledge and ability to interpret a common scientific diagram.
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Homopolar motor
This simple project was done as a demonstration for Science Club. We were discussing how a speaker works. In fact, all movement due to electricity is caused by the same effect: the interaction of a moving charge in a magnetic field. In this case, the electric current is moving from the positive end of the…
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Electromagnetism
Learning objectives: Electricity flowing through a wire creates a magnetic field. An electromagnet can attract or repel a magnet, just like a permanent magnet does. The changing current of a speaker causes the magnetic field in the wire to change, pulling and then pushing the wire toward and then away from the magnet. Special projects:…
