Required Practical: Investigating Resistance (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
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Practise the questions
8 questions from this quiz
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Practise the questions
8 questions from this quiz
Which component can be tested in this I-V characteristics investigation?
Which component can be tested in this I-V characteristics investigation?
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 values are recorded for each current in this experiment?
What two values are recorded for each current in this experiment?
Current and potential difference
Why are the wires to the battery swapped over and the experiment repeated?
Why are the wires to the battery swapped over and the experiment repeated?
To get negative current and PD readings
What does the ammeter display when the battery wires are swapped over?
What does the ammeter display when the battery wires are swapped over?
Negative current
What type of graph is plotted for each component?
What type of graph is plotted for each component?
I-V graph
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
How is the type of resistor identified in this investigation?
How is the type of resistor identified in this investigation?
By plotting an I-V graph