Slide Preview for Physics 7 - Magnetism and Electromagnetism
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Powerpoint Description:This slideshow covers the following content from the P7 topic from the 2016 syllabus: magnetic fields around a bar magnet, attraction and repulsion, permanent vs induced magnetism, magnetic metals, the Earth's magnetic field, plotting a magnetic field with a compass, magnetic field around a current-carrying wire, making electromagnets, how relays work, the motor effect, F=BIl, example questions on the force on a wire, electric motors, how loudspeakers work, electromagnetic induction, the generator effect, AC generators, how microphones work, how transformers work, the transformer equation, power conservation in transformers and example questions.
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