501 prompts matching "What makes a quantity scalar or vector"
Quiz: Coulomb's law and the force between charges
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Worked example: Energy stored in a charged capacitor
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Practice set: Capacitors in series and in parallel
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WAEC prep: The parallel plate capacitor and the effect of a dielectric
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Spot my mistake: Combining capacitors with the resistor rules
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Real-life Nigeria: Capacitors in fans, inverters and camera flashes
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Exam timing: A timed capacitor problem set
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Quiz: Ohm's law and ohmic against non-ohmic conductors
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Worked example: Resistance of a wire from its dimensions and resistivity
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Worked example: The cost of running an appliance for a stated period
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Worked example: The mass deposited from a stated current and time
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Real-life Nigeria: Electroplating in Nigerian metal workshops
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Worked example: Turns ratio and output voltage of a transformer
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Practice set: Induced e.m.f. problems for moving conductors
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WAEC prep: Transformer energy losses and how they are reduced
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Spot my mistake: A transformer calculation with the ratio inverted
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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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Spot my mistake: Choosing a hard magnetic material for a transformer core
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Real-life Nigeria: Magnets in loudspeakers and electric generators
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