Zener diode (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of component is a Zener diode?
What type of component is a Zener diode?
A specialised semiconductor diode
In forward bias, what must the applied voltage surpass for a Zener diode to allow current flow?
In forward bias, what must the applied voltage surpass for a Zener diode to allow current flow?
Threshold voltage
What is the breakdown voltage of a Zener diode also called?
What is the breakdown voltage of a Zener diode also called?
Zener voltage,
What happens to voltage across a Zener diode in reverse bias once breakdown voltage is reached?
What happens to voltage across a Zener diode in reverse bias once breakdown voltage is reached?
Remains approximately constant
What minimum current does a Zener diode typically require to maintain its breakdown voltage?
What minimum current does a Zener diode typically require to maintain its breakdown voltage?
Around 5 mA
Which application uses a Zener diode to supply a stable voltage despite input fluctuations?
Which application uses a Zener diode to supply a stable voltage despite input fluctuations?
Constant voltage source
For a Zener diode to function correctly, how must input voltage relate to Zener voltage?
For a Zener diode to function correctly, how must input voltage relate to Zener voltage?
In the example with V and V, what voltage drops across the resistor?
In the example with V and V, what voltage drops across the resistor?
6 V
With mA and mA, what is the total current through the resistor?
With mA and mA, what is the total current through the resistor?
105 mA
Using V and mA, what resistor value is required?
Using V and mA, what resistor value is required?
57 Ω