231 prompts matching "Quiz: Threshold frequency and work function"
Quiz: Optical instruments and the electromagnetic spectrum reviewed
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Quiz: Charging by friction, by contact and by induction
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Worked example: Coulomb's law and the force between two charges
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Quiz: Conventional current and electron flow
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Worked example: Calculating charge from current and time
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Quiz: Potential difference, and how it differs from e.m.f.
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Quiz: Ohm's law and how it is stated
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Worked example: Calculating resistance from voltage and current
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Quiz: The fuse and how it protects a circuit
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Practice set: The circuit breaker and how it works
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Exam prep: The a.c. generator and how it works
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Quiz: Oersted's experiment and what it showed
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Worked example: The strength of an electromagnet and what affects it
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Physics at work: The loudspeaker, and how it turns current into sound
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Quiz: Resistance and Ohm's law reviewed
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Worked example: Electrical safety and the cost of energy reviewed
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Quiz: Fleming's left-hand rule
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Quiz: The structure of a transformer and its two coils
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Quiz: The Rutherford scattering experiment and what it showed
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Quiz: Telling alpha, beta and gamma radiation apart
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