250 prompts matching "Applying Ohm's law to find an unknown quantity"
Let me explain: Resistivity and the factors affecting resistance
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Worked example: Calculating the effective resistance of resistors in series
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Worked example: Calculating the effective resistance of resistors in parallel
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Practice set: The factors affecting the size of an induced e.m.f.
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Exam prep: The a.c. generator and how it works
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Spot my mistake: The d.c. generator and the commutator
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Physics at work: The loudspeaker, and how it turns current into sound
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Exam prep: The simple d.c. motor and how it turns
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Real-life Nigeria: Electric motors in Nigerian homes and industry
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Teach me: The structure of the atom and the particles in it
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Let me explain: Atomic number, mass number and isotopes
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Exam prep: The cloud chamber and the photographic plate as detectors
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Real-life Nigeria: Radioisotopes in Nigerian medicine and agriculture
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Teach me: The force on a conductor and the electric motor reviewed
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Let me explain: The nuclear atom and radioactivity reviewed
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Quiz: Faraday's laws of electromagnetic induction
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Teach me: Light as a wave, and the properties all waves share
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Quiz: Rectilinear propagation and the formation of shadows
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Worked example: Image formation in a plane mirror
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