Required Practical: Investigating Resistance (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
9 questions from this quiz
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Practise the questions
9 questions from this quiz
Which component can be tested in this I-V investigation?
Which component can be tested in this I-V investigation?
A filament lamp
What is the purpose of the variable resistor in this circuit?
What is the purpose of the variable resistor in this circuit?
To change the current through the circuit
What two measurements should be recorded for each reading?
What two measurements should be recorded for each reading?
Current and potential difference
Why should the wires to the battery be swapped over during the experiment?
Why should the wires to the battery be swapped over during the experiment?
To get negative current readings
What will the ammeter display after swapping the battery wires?
What will the ammeter display after swapping the battery wires?
A negative current
How should potential difference be recorded after swapping the battery wires?
How should potential difference be recorded after swapping the battery wires?
As a negative value
What type of graph should be plotted for each component?
What type of graph should be plotted for each component?
An I-V graph
What does the I-V graph help to identify?
What does the I-V graph help to identify?
Which type of resistor the component is
Which three types of resistor can be identified from the I-V graphs?
Which three types of resistor can be identified from the I-V graphs?
Ohmic, non-ohmic and diode