250 prompts matching "Magnets in loudspeakers and electric generators"
Practice set: The factors affecting the size of an induced e.m.f.
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Quiz: Oersted's experiment and what it showed
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Exam prep: The relay and the telephone earpiece
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Spot my mistake: The moving-coil galvanometer
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Quiz: Resistance and Ohm's law reviewed
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Spot my mistake: The errors most often made in second-term SS2 Physics
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Practice set: The force between two parallel current-carrying conductors
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Exam prep: The simple d.c. motor and how it turns
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Teach me: What a transformer does, and why it is needed
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Quiz: The structure of a transformer and its two coils
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Spot my mistake: Assuming a transformer can work on direct current
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Practice set: The Bohr model and electron energy levels
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Spot my mistake: Confusing atomic number with mass number
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Teach me: What radioactivity is, and why some nuclei are unstable
You are my personal SS2 Physics tutor. Teach me what radioactivity is, and why some nuclei
Practice set: The Geiger-Muller tube and how it detects radiation
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Exam prep: The cloud chamber and the photographic plate as detectors
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Practice set: The decay constant and the activity of a source
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Spot my mistake: Assuming a sample decays completely after two half-lives
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Physics at work: Nuclear energy, its uses and its dangers
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Teach me: The structure of the earth and its layers
You are my personal SS2 Physics tutor. Teach me the structure of the earth and its layers,