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Powerpoint Description:

This slideshow covers: magnetic fields around a bar magnet, attracting and repelling magnets, permanent vs induced magnetism, the Earth's magnetic field, drawing a magnetic field using a plotting compass, magnetic fields around current-carrying wires, making electromagnets, factors that affect the strength of an electromagnet, magnetic fields around a solenoid, the motor effect, Fleming's Left Hand Rule, F=BIL, using motors, electromagnetic induction, how induced magnetic fields oppose the change that induced them, how generators work, comparing dynamos and generators, transformers and how they work, calculating the output voltages of a transformer, how microphones and loudspeakers work.

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