Current, resistance and potential difference (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
According to Ohm's law, how is current related to potential difference at constant temperature?
According to Ohm's law, how is current related to potential difference at constant temperature?
Directly proportional
What is the unit of measurement for resistance?
What is the unit of measurement for resistance?
Ohms (Ω)
What happens to current flow when resistance is higher?
What happens to current flow when resistance is higher?
Less current flows
What happens to current flow when resistance is lower?
What happens to current flow when resistance is lower?
More current flows
Which type of resistor can be changed using a slider or knob?
Which type of resistor can be changed using a slider or knob?
Variable resistor
What is the correct form of Ohm's law equation?
What is the correct form of Ohm's law equation?
In Ohm's law equation, what does represent?
In Ohm's law equation, what does represent?
Potential difference in volts
In Ohm's law equation, what does represent?
In Ohm's law equation, what does represent?
Current in amps
What is the rearranged form of Ohm's law to find current?
What is the rearranged form of Ohm's law to find current?
What type of graph do ohmic components produce when plotting current vs potential difference?
What type of graph do ohmic components produce when plotting current vs potential difference?
Straight line through origin
Which instrument is used to measure current in a circuit?
Which instrument is used to measure current in a circuit?
Ammeter
On a current vs potential difference graph, what does a steeper line indicate?
On a current vs potential difference graph, what does a steeper line indicate?
Lower resistance