Circuit devices & IV Graphs (Edexcel 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 do IV graphs show?
What do IV graphs show?
How current changes with potential difference
What type of IV graph does a linear component have?
What type of IV graph does a linear component have?
A straight line
What does a steeper IV graph indicate about resistance?
What does a steeper IV graph indicate about resistance?
Lower resistance
Where does the IV graph of a fixed resistor pass through?
Where does the IV graph of a fixed resistor pass through?
What type of IV graph does a filament lamp have?
What type of IV graph does a filament lamp have?
A curved graph
What happens to a filament lamp's resistance as current increases?
What happens to a filament lamp's resistance as current increases?
Resistance increases
In which direction does a diode allow current to flow?
In which direction does a diode allow current to flow?
One direction only
What must be reached before a diode allows current to flow?
What must be reached before a diode allows current to flow?
A threshold voltage
What happens to an LDR's resistance in bright light?
What happens to an LDR's resistance in bright light?
The resistance falls
When is an LDR's resistance highest?
When is an LDR's resistance highest?
In darkness
What happens to a thermistor's resistance in hot conditions?
What happens to a thermistor's resistance in hot conditions?
The resistance drops
Which device is commonly used as a temperature sensor in car engines?
Which device is commonly used as a temperature sensor in car engines?
A thermistor