245 prompts matching "Reading period and frequency from an a.c. waveform"
Teach me: What electric current is, and how it is measured
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Let me explain: The ammeter and how it is connected
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Exam prep: Current in a metallic conductor and in an electrolyte
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Let me explain: The voltmeter and how it is connected
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Exam prep: Cells connected in series and in parallel
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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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Teach me: What resistance is, and what it depends on
You are my personal SS2 Physics tutor. Teach me what resistance is, and what it depends on
Let me explain: Resistivity and the factors affecting resistance
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Exam prep: The advantages and disadvantages of a series connection
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Exam prep: Combining series and parallel sections in one circuit
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Let me explain: Earthing, and why an appliance is earthed
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Exam prep: Electrical energy, power and the cost of consumption
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Let me explain: Lenz's law and the direction of an induced current
I have just studied Lenz's law and the direction of an induced current in my SS2 Physics c
Exam prep: The a.c. generator and how it works
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Spot my mistake: The d.c. generator and the commutator
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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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Exam prep: The relay and the telephone earpiece
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