501 prompts matching "Magnetic screening and how it is achieved"
Worked example: Turns ratio and output voltage of a transformer
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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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Real-life Nigeria: Magnets in loudspeakers and electric generators
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Teach me: Conduction of electricity through a liquid
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Real-life Nigeria: Neon signs and fluorescent tubes
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Quiz: Total internal reflection as the basis of the fibre
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Spot my mistake: Assuming light bends round the fibre rather than reflecting
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Spot my mistake: Treating laser light as simply very bright light
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Real-life Nigeria: Lasers in surgery, printing and barcode scanning
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Physics at work: Laser and photonics work
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Practice set: Dimensional problems across mechanics quantities
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Spot my mistake: A dimensional check that overlooks a dimensionless constant
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Worked example: Thrust from a stated exhaust speed and mass flow rate
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Spot my mistake: The claim that a rocket pushes against the air
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Spot my mistake: The subject combinations an engineering course in Nigeria requires
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Worked example: Calculating the flux density at a point near a long straight wire
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Quiz: Fleming's left-hand rule and the direction of force
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Let me explain: The force on a moving charge in a magnetic field
I have just studied the force on a moving charge in a magnetic field in my SS3 Physics cla
Quiz: Peak value, root-mean-square value and their relationship
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