250 prompts matching "Let me explain: Why no machine reaches one hundred per cent efficiency"
Worked example: The neutral point, and where it occurs
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Spot my mistake: Magnetic flux and magnetic flux density
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Worked example: The molecular theory of matter reviewed
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Spot my mistake: The errors most often made in first-term SS2 Physics
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Worked example: Coulomb's law and the force between two charges
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Spot my mistake: Lightning and the lightning conductor
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Spot my mistake: Primary cells and secondary cells compared
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Worked example: Calculating resistance from voltage and current
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Spot my mistake: The effect of temperature on resistance
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Worked example: Calculating the effective resistance of resistors in series
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Spot my mistake: Adding resistances wrongly in a series problem
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Worked example: Calculating the effective resistance of resistors in parallel
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Spot my mistake: Inverting the reciprocal wrongly in a parallel calculation
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Worked example: Choosing the right fuse rating for an appliance
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Spot my mistake: Overloading a socket, and what follows from it
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Worked example: Calculating an induced electromotive force
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Spot my mistake: The d.c. generator and the commutator
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Worked example: The strength of an electromagnet and what affects it
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Worked example: Electrical safety and the cost of energy reviewed
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Spot my mistake: The errors most often made in second-term SS2 Physics
Act as my SS2 Physics tutor. Show me a worked solution on the errors most often made in se