501 prompts matching "Physics at work: Fibre optics in Nigerian communications"
Real-life Nigeria: Photocells in automatic doors and light meters
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Worked example: The de Broglie wavelength of an electron at a stated speed
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Spot my mistake: A calculation using the wrong mass in the de Broglie formula
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Teach me: Conductors, insulators and semiconductors compared
You are my personal SS3 Physics tutor. Teach me conductors, insulators and semiconductors
Worked example: Reading a resistor colour code and checking it
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Worked example: The period of a satellite at a stated orbital radius
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Spot my mistake: Confusing a geostationary orbit with a polar one
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Real-life Nigeria: NigComSat and satellite services in Nigeria
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Practice set: A mixed problem set spanning fields, a.c. circuits and quantisation
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Worked example: Finding frequency from a trace and the time-base setting
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Worked example: Current gain of a transistor from given base and collector currents
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Worked example: Simplifying a simple logic expression
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Spot my mistake: A truth table filled in for the wrong gate
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Real-life Nigeria: Logic gates inside a calculator and a digital meter
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Practice set: Electron speed from accelerating potential
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Real-life Nigeria: The cathode ray tube in older television sets
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Worked example: Energy released from a stated mass defect
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Practice set: Balancing nuclear equations for fission and fusion
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Real-life Nigeria: Nuclear power and the debate about it in Nigeria
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Practice set: X-ray intensity and penetrating power problems
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