501 prompts matching "Exam prep: The critical angle and the condition for total internal reflection"
Let me explain: Power dissipation and why cables warm
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Exam timing: A timed electrolysis problem set
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Let me explain: Self and mutual inductance
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Real-life Nigeria: Step-down transformers on Nigerian distribution poles
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Exam timing: A timed induction problem set
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Worked example: Choosing a core material from hysteresis data
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Exam timing: A timed magnetic materials set
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Worked example: Identifying products at each electrode in a stated cell
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Exam timing: A timed conduction problem set
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Exam timing: A timed fibre optics problem set
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Let me explain: Coherence, monochromaticity and collimation
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Worked example: Photon energy of a laser of stated wavelength
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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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Let me explain: Checking an equation for dimensional consistency
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Real-life Nigeria: Unit checking before trusting a calculation
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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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Exam timing: A timed rocket motion problem set
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Let me explain: Why a.c. is described by an r.m.s. rather than an average value
I have just studied why a.c. is described by an r.m.s. rather than an average value in my