501 prompts matching "Confusing the umbra with the penumbra"
Practice set: Induced e.m.f. problems for moving conductors
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Real-life Nigeria: Step-down transformers on Nigerian distribution poles
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Worked example: Choosing a core material from hysteresis data
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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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Worked example: Identifying products at each electrode in a stated cell
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Practice set: Problems on conduction in electrolytes
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Real-life Nigeria: Neon signs and fluorescent tubes
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Practice set: Problems on signal loss and fibre geometry
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Real-life Nigeria: Fibre backbones carrying Nigerian internet traffic
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Let me explain: Coherence, monochromaticity and collimation
I have just studied coherence, monochromaticity and collimation in my SS3 Physics class. L
Worked example: Photon energy of a laser of stated wavelength
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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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Let me explain: Checking an equation for dimensional consistency
I have just studied checking an equation for dimensional consistency in my SS3 Physics cla
Practice set: Dimensional problems across mechanics quantities
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WAEC prep: Using dimensions to spot a wrong formula
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Real-life Nigeria: Unit checking before trusting a calculation
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Worked example: Thrust from a stated exhaust speed and mass flow rate
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Practice set: Momentum problems for a rocket losing mass
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