226 prompts matching "Quiz: Centre of mass, momentum and density reviewed"
Practice set: Internal resistance and the lost volts
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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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Teach me: What resistance is, and what it depends on
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Let me explain: Resistivity and the factors affecting resistance
I have just studied resistivity and the factors affecting resistance in my SS2 Physics cla
Worked example: Calculating resistance from voltage and current
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Practice set: The ohmic conductor and the non-ohmic conductor
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Worked example: Calculating the effective resistance of resistors in series
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Worked example: Calculating the effective resistance of resistors in parallel
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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
I have just studied earthing, and why an appliance is earthed in my SS2 Physics class. Let
Practice set: The circuit breaker and how it works
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Spot my mistake: Overloading a socket, and what follows from it
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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
I have just studied the field pattern around a straight wire and around a coil in my SS2 P
Practice set: The electric bell and how it operates
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Exam prep: The relay and the telephone earpiece
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Physics at work: The loudspeaker, and how it turns current into sound
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