250 prompts matching "Confusing the gradient with the area on a motion graph"
Practice set: The factors affecting the size of an induced e.m.f.
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Exam prep: The a.c. generator and how it works
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Real-life Nigeria: Induction at work in Nigerian power generation
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Let me explain: The field pattern around a straight wire and around a coil
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Worked example: The strength of an electromagnet and what affects it
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Practice set: The electric bell and how it operates
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Worked example: Electrical safety and the cost of energy reviewed
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Practice set: Electromagnetic induction reviewed
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Exam prep: The magnetic effect of an electric current reviewed
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Let me explain: The factors that determine the size of the force
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Exam prep: The simple d.c. motor and how it turns
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Worked example: Calculating output voltage from the turns ratio
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Practice set: The efficiency of a transformer
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Exam prep: Energy losses in a transformer, and how they are reduced
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Real-life Nigeria: Transformers in Nigeria's power transmission network
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Real-life Nigeria: The nucleus as the source of nuclear energy
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Worked example: Writing an equation for alpha decay and for beta decay
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Let me explain: The random nature of radioactive decay
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Worked example: Calculating the mass remaining after a number of half-lives
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Exam prep: Carbon dating and how it works
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