427 prompts matching "Exam prep: Ray diagrams for a concave mirror"
Quiz: Electrolytes, electrodes and the products at each
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Practice set: Electrolysis calculations across different cells
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Spot my mistake: A Faraday calculation with the wrong valency
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Real-life Nigeria: Electroplating in Nigerian metal workshops
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Quiz: Lenz's law and the direction of induced current
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Quiz: Magnetic domains and how magnetisation occurs
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Practice set: Problems on magnetisation and demagnetisation
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Real-life Nigeria: Magnets in loudspeakers and electric generators
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Quiz: Conduction through a gas at reduced pressure
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Practice set: Problems on conduction in electrolytes
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Spot my mistake: Confusing electron flow with conventional current
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Real-life Nigeria: Neon signs and fluorescent tubes
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Quiz: Total internal reflection as the basis of the fibre
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Practice set: Problems on signal loss and fibre geometry
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Spot my mistake: Assuming light bends round the fibre rather than reflecting
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Real-life Nigeria: Fibre backbones carrying Nigerian internet traffic
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Quiz: Stimulated emission and population inversion
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Practice set: Problems on laser output and photon count
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Spot my mistake: Treating laser light as simply very bright light
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Real-life Nigeria: Lasers in surgery, printing and barcode scanning
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