Current, Resistance & 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
What is potential difference in a circuit?
What is potential difference in a circuit?
Force that causes charges to flow
What unit is potential difference measured in?
What unit is potential difference measured in?
Volts (V)
Which instrument measures potential difference?
Which instrument measures potential difference?
Voltmeter
How must a voltmeter be connected in a circuit?
How must a voltmeter be connected in a circuit?
In parallel with the component
What does resistance do in an electrical circuit?
What does resistance do in an electrical circuit?
Slows down flow of charges
What unit is resistance measured in?
What unit is resistance measured in?
Ohms (Ω)
What is the equation linking current, pd and resistance?
What is the equation linking current, pd and resistance?
How do you rearrange to find resistance?
How do you rearrange to find resistance?
What factor is investigated in the required practical for resistance?
What factor is investigated in the required practical for resistance?
Length of a wire
How is resistance related to wire length?
How is resistance related to wire length?
Directly proportional
What does a graph of resistance vs wire length show?
What does a graph of resistance vs wire length show?
Straight line through origin
If pd is V across a Ω resistor, what is the current?
If pd is V across a Ω resistor, what is the current?
A