95 prompts matching "A resistivity calculation using diameter instead of radius"
Practice set: The factors affecting the size of an induced e.m.f.
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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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Exam prep: The magnetic effect of an electric current reviewed
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Spot my mistake: The errors most often made in second-term SS2 Physics
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Let me explain: The factors that determine the size of the force
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Spot my mistake: Confusing Fleming's left-hand rule with the right-hand rule
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Quiz: The structure of a transformer and its two coils
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Practice set: The efficiency of a transformer
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Exam prep: The models of the atom compared, from Thomson to Bohr
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Spot my mistake: Confusing atomic number with mass number
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Real-life Nigeria: The nucleus as the source of nuclear energy
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Let me explain: The penetrating and ionising power of each radiation
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Real-life Nigeria: The hazards of radiation and the precautions taken against them
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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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Practice set: The decay constant and the activity of a source
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Worked example: The rotation and the revolution of the earth
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Let me explain: Kepler's laws of planetary motion
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Worked example: Calculating the orbital period of a planet
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