227 prompts matching "Resistance of a wire from its dimensions and resistivity"
Real-life Nigeria: Eclipses of the sun and of the moon explained
Act as my SS2 Physics tutor. Show me where eclipses of the sun and of the moon explained t
Teach me: What a star is, and how it produces its energy
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Worked example: The luminosity and the brightness of a star
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Physics at work: Astronomy as a field of study and of work
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Quiz: The law of universal gravitation as Newton stated it
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Practice set: The domain theory of magnetism
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Practice set: The field around a straight current-carrying wire
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Practice set: The effects of an electric current
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Quiz: Faraday's laws of electromagnetic induction
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Practice set: The factors affecting the size of an induced e.m.f.
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Practice set: The efficiency of a transformer
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Quiz: Nuclear fusion in the core of a star
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Quiz: Radio waves and microwaves and their uses
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Quiz: Vibration in strings and the factors affecting the frequency
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Quiz: Brownian motion and what it demonstrates
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Practice set: Cohesion, adhesion and the forces between molecules
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Practice set: Acceleration due to gravity and how it is measured
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Spot my mistake: The variation of g over the earth's surface
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Quiz: Magnetic and non-magnetic materials
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Quiz: Magnetic field lines and their properties
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