245 prompts matching "Gravitational force and field problems"
Worked example: The neutral point, and where it occurs
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Practice set: The field around a straight current-carrying wire
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Spot my mistake: Magnetic flux and magnetic flux density
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Real-life Nigeria: The electromagnet and the uses it is put to
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Real-life Nigeria: Linking waves, sound and light together
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Spot my mistake: Lightning and the lightning conductor
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Worked example: Calculating charge from current and time
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Teach me: What electromotive force means
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Spot my mistake: Primary cells and secondary cells compared
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Real-life Nigeria: The maintenance and charging of a car battery
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Worked example: Calculating resistance from voltage and current
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Practice set: Solving a series circuit problem from end to end
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Spot my mistake: Adding resistances wrongly in a series problem
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Practice set: Solving a parallel circuit problem from end to end
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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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Teach me: The magnetic field produced by an electric current
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Worked example: The strength of an electromagnet and what affects it
Act as my SS2 Physics tutor. Show me a full worked example on the strength of an electroma