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Current, Resistance And Potential Difference (GCSE Physics)
The following is a GCSE Physics test covering 'Current, Resistance And Potential Difference' from the broader topic Electricity. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Which factors determine the resistance of a wire (choose the correct set)?
A wire carries a current of 3.0 A. Which quantity does this current describe?
What happens to total resistance when resistors are added in parallel?
A 10 O resistor has a current of 2.0 A through it. What is the electrical power dissipated by this resistor?
Compared with an incandescent filament lamp, why are LEDs more energy efficient as light sources?
Why does a filament lamp not obey Ohm’s law over its whole operating range?
Which equation links electrical power (P), current (I) and potential difference (V)?
A wire carries 5.0 A of current for 12 s. How much charge has flowed?
Which change will increase the resistance of a uniform metallic wire?
Where should a voltmeter be connected to measure the potential difference across a component?
In the UK mains electricity system what are the standard potential difference and frequency?
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