Resistors: Thermistors & LDR's (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to a thermistor's resistance as temperature increases?
What happens to a thermistor's resistance as temperature increases?
It decreases
What happens to an LDR's resistance as light intensity increases?
What happens to an LDR's resistance as light intensity increases?
It decreases
What are thermistors and LDRs used for in circuits?
What are thermistors and LDRs used for in circuits?
Sensing circuits
How might a thermistor be used when it is cold?
How might a thermistor be used when it is cold?
Switch on a heater
How might a thermistor be used when it gets hot?
How might a thermistor be used when it gets hot?
Activate a fan
What is the resistance of an LDR when the room is dark?
What is the resistance of an LDR when the room is dark?
High
In a dark room, what happens to the potential difference across the LDR and bulb?
In a dark room, what happens to the potential difference across the LDR and bulb?
Both have high potential difference
How does a bulb shine in a dark room with an LDR circuit?
How does a bulb shine in a dark room with an LDR circuit?
Brighter
What is the resistance of an LDR when there is bright light in the room?
What is the resistance of an LDR when there is bright light in the room?
Very low
How does a bulb shine in bright light with an LDR circuit?
How does a bulb shine in bright light with an LDR circuit?
Dimmer