501 prompts matching "What a machine is, and what it does"
Exam timing: A timed set of a.c. circuit calculations
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Let me explain: How an electron transition produces a spectral line
I have just studied how an electron transition produces a spectral line in my SS3 Physics
Quiz: Threshold frequency and work function
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Practice set: Maximum kinetic energy of emitted electrons
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Spot my mistake: A solution that treats light purely as a wave here
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Real-life Nigeria: Photocells in automatic doors and light meters
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Spot my mistake: A calculation using the wrong mass in the de Broglie formula
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Quiz: Intrinsic and extrinsic semiconductors
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Practice set: Identifying components in a simple circuit diagram
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Quiz: Uplink and downlink frequencies
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Let me explain: Why a geostationary orbit sits above the equator
I have just studied why a geostationary orbit sits above the equator in my SS3 Physics cla
Quiz: Rapid recall across a.c. circuits
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Real-life Nigeria: Where this term's physics shows up in Nigerian technology
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Quiz: The electron gun and the deflecting plates
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Worked example: Finding frequency from a trace and the time-base setting
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Quiz: Half-wave and full-wave rectification
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Practice set: Sketching output waveforms for rectifier circuits
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Real-life Nigeria: Rectifiers in phone chargers and inverters
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Quiz: NAND and NOR gates and their truth tables
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Practice set: Completing truth tables for given circuits
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