250 prompts matching "A transformer calculation with the ratio inverted"
Practice set: The effects of an electric current
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Real-life Nigeria: Measuring the current in a Nigerian household circuit
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Let me explain: The voltmeter and how it is connected
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Worked example: Calculating the work done in moving a charge
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Practice set: Internal resistance and the lost volts
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Real-life Nigeria: The maintenance and charging of a car battery
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Let me explain: Resistivity and the factors affecting resistance
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Practice set: The ohmic conductor and the non-ohmic conductor
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Worked example: Calculating the effective resistance of resistors in series
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Exam prep: The advantages and disadvantages of a series connection
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Worked example: Calculating the effective resistance of resistors in parallel
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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
Worked example: Choosing the right fuse rating for an appliance
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Practice set: The circuit breaker and how it works
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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
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Practice set: The factors affecting the size of an induced e.m.f.
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Exam prep: The a.c. generator and how it works
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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
Worked example: The strength of an electromagnet and what affects it
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