250 prompts matching "Let me explain: Why no machine reaches one hundred per cent efficiency"
Real-life Nigeria: The electromagnet and the uses it is put to
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Practice set: The gravitational field reviewed
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Exam prep: Magnetism and magnetic fields reviewed
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Real-life Nigeria: Linking waves, sound and light together
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Physics at work: Preparing a revision plan for the SS2 first term
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Quiz: Charging by friction, by contact and by induction
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Practice set: Conductors, insulators and semiconductors
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Exam prep: The unit of charge and the quantisation of charge
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Real-life Nigeria: Static electricity in Nigerian daily life
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Quiz: Conventional current and electron flow
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Practice set: The effects of an electric current
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Quiz: Potential difference, and how it differs from e.m.f.
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Practice set: Internal resistance and the lost volts
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Exam prep: Cells connected in series and in parallel
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Real-life Nigeria: The maintenance and charging of a car battery
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Physics at work: Electromotive force in Nigerian power generation
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Quiz: Ohm's law and how it is stated
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Quiz: Current in a series circuit
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Practice set: Solving a series circuit problem from end to end
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