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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)?
Where should an ammeter be connected to measure current through a component?
A wire carries 5.0 A of current for 12 s. How much charge has flowed?
What is the SI unit of electric charge?
A wire carries a current of 3.0 A. Which quantity does this current describe?
Compared with an incandescent filament lamp, why are LEDs more energy efficient as light sources?
In a parallel circuit containing several branches, what is true about the potential difference (voltage)?
How does the resistance of most metallic conductors change as temperature increases?
Why does increasing the transmission voltage for power lines reduce energy losses in the cables?
What happens to total resistance when resistors are added in series?
How does the resistance of an NTC thermistor change as its temperature increases?
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