Current, Resistance & Potential Difference (OCR GCSE Physics A (Gateway Science Suite)): 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 an electrical circuit?
What is potential difference in an electrical circuit?
The driving force causing charge flow
What is the unit of potential difference?
What is the unit of potential difference?
Volts (V)
Which instrument is used to measure potential difference?
Which instrument is used to measure potential difference?
Voltmeter
How must a voltmeter be connected to measure pd across a component?
How must a voltmeter be connected to measure pd across a component?
In parallel with the component
What does resistance do in an electrical circuit?
What does resistance do in an electrical circuit?
Slows down the flow of charges
What is the unit of resistance?
What is the unit of resistance?
Ohms (Ω)
In the equation , what does represent?
In the equation , what does represent?
Current in amps (A)
What is the rearranged form of to find resistance?
What is the rearranged form of to find resistance?
A resistor has V across it. What is the current?
A resistor has V across it. What is the current?
A
In the wire length experiment, what is the relationship between resistance and wire length?
In the wire length experiment, what is the relationship between resistance and wire length?
Directly proportional
What shape is the line of best fit when plotting resistance against wire length?
What shape is the line of best fit when plotting resistance against wire length?
Straight line through the origin
The wire length experiment can be modified to investigate resistors in what configurations?
The wire length experiment can be modified to investigate resistors in what configurations?
Series and parallel