Resistors (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
On an I-V graph, which axis shows current?
On an I-V graph, which axis shows current?
The vertical y-axis
What shape does a fixed resistor create on an I-V graph?
What shape does a fixed resistor create on an I-V graph?
A straight line through the origin
What are fixed resistors called due to their linear I-V relationship?
What are fixed resistors called due to their linear I-V relationship?
Ohmic conductors
What shape does a filament lamp create on an I-V graph?
What shape does a filament lamp create on an I-V graph?
A curved line
Why does a filament lamp's resistance increase during operation?
Why does a filament lamp's resistance increase during operation?
Higher temperature from increased voltage
What pattern does a diode create on an I-V graph?
What pattern does a diode create on an I-V graph?
Flat then steep line
In which direction does current flow through a diode?
In which direction does current flow through a diode?
In one direction only
What equipment measures current when drawing an I-V graph?
What equipment measures current when drawing an I-V graph?
An ammeter
What is the purpose of a variable resistor in I-V experiments?
What is the purpose of a variable resistor in I-V experiments?
To change the voltage
What is the formula for calculating resistance from I-V data?
What is the formula for calculating resistance from I-V data?
What is the common mistake when finding resistance from I-V graphs?
What is the common mistake when finding resistance from I-V graphs?
Thinking gradient equals resistance