501 prompts matching "What an electric field is"
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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Real-life Nigeria: The CRO in a Nigerian electronics workshop
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Quiz: Half-wave and full-wave rectification
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Spot my mistake: A rectifier circuit drawn with a diode reversed
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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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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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Quiz: Nuclear fusion and the conditions it demands
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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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WAEC prep: The uses and dangers of X-rays
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Spot my mistake: Confusing X-ray intensity with X-ray quality
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Real-life Nigeria: X-rays in Nigerian hospitals and airport security
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Quiz: Recall of reactance and impedance formulae
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Spot my mistake: The commonest slips in a.c. arithmetic
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Spot my mistake: A wiring error that shorts a component
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Quiz: Solar, wind and hydro as renewable sources
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Worked example: The output of a solar panel of stated area and efficiency
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