501 prompts matching "Let me explain: The methods of making and of destroying a magnet"
Practice set: Problems on magnetisation and demagnetisation
Act as my SS3 Physics tutor. Give me five practice questions on problems on magnetisation
Spot my mistake: Choosing a hard magnetic material for a transformer core
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Real-life Nigeria: Magnets in loudspeakers and electric generators
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Exam timing: A timed magnetic materials set
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Real-life Nigeria: Neon signs and fluorescent tubes
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Exam timing: A timed conduction problem set
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Worked example: The critical angle from stated refractive indices
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Spot my mistake: Assuming light bends round the fibre rather than reflecting
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Exam timing: A timed fibre optics problem set
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Practice set: Problems on laser output and photon count
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Real-life Nigeria: Lasers in surgery, printing and barcode scanning
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Exam timing: A timed laser problem set
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Physics at work: Laser and photonics work
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Practice set: Dimensional problems across mechanics quantities
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Spot my mistake: A dimensional check that overlooks a dimensionless constant
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Exam timing: A timed dimensional analysis set
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Physics at work: Engineering calculation and quality control
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Practice set: Momentum problems for a rocket losing mass
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Spot my mistake: The claim that a rocket pushes against the air
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Real-life Nigeria: Nigeria's satellite launches and space agency work
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