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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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In a series circuit containing several resistors, what is true about the current?
Which equation links electrical power (P), current (I) and potential difference (V)?
What happens to total resistance when resistors are added in series?
What is the primary role of a fuse in a mains electrical plug?
Compared with an incandescent filament lamp, why are LEDs more energy efficient as light sources?
Which change will increase the resistance of a uniform metallic wire?
Which expression gives the electrical power dissipated in a resistor using current and resistance?
Where should an ammeter be connected to measure current through a component?
Which formula expresses Ohm’s law for a resistor?
How much energy does a 60 W device transfer in 2 minutes when running at constant power?
Why does a filament lamp not obey Ohm’s law over its whole operating range?
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