Zener Diode Quiz

What is the main function of a Zener diode as a voltage regulator?

• To block the flow of current in the reverse-biased direction

• To regulate the current flow in the forward-biased direction

• To amplify the input voltage

• To maintain a constant output voltage by conducting in the reverse-biased direction when the voltage exceeds its breakdown voltage.

How does a Zener diode maintain a constant voltage across it?

• By increasing the current flow

• By operating in the breakdown region

• By decreasing the breakdown voltage

• By operating in the forward bias region

What are the key characteristics of a Zener diode?

• Maintains constant voltage when reverse biased

• Has no effect when forward biased

• Increases resistance when reverse biased

• Emits light when forward biased

What is the breakdown voltage of a Zener diode?

• The breakdown voltage is always 0 volts

• The breakdown voltage is always 500 volts

• The breakdown voltage varies depending on the specific Zener diode, but it is typically around 2 to 200 volts.

• The breakdown voltage is always 1000 volts

Name one application of a Zener diode.

• Controlling motor speed

• Amplifying audio signals

• Voltage regulation and protection

• Filtering high-frequency noise

How is a Zener diode used in voltage stabilization?

• Amplifying the voltage to increase the output

• Blocking the flow of current to reduce the output voltage

• Converting the voltage into alternating current

• Regulating the voltage across it to maintain a constant output voltage

What happens to the Zener diode in forward bias?

• It conducts current in the forward direction

• It blocks current in the forward direction

• It emits light in the forward direction

• It stores energy in the forward direction

What is the significance of reverse bias in a Zener diode?

• Allows the Zener diode to operate in the breakdown region

• Reduces the current flowing through the Zener diode

• Increases the breakdown voltage of the Zener diode

• Causes the Zener diode to stop conducting