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What is the primary purpose of a Zener diode?

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Question: What is the primary purpose of a Zener diode?

Options:

  1. To rectify AC signals
  2. To regulate voltage
  3. To amplify signals
  4. To switch currents

Correct Answer: To regulate voltage

Solution: 

A Zener diode is primarily used for voltage regulation, allowing current to flow in the reverse direction when a specific voltage is reached.

What is the primary purpose of a Zener diode?

Practice Questions

Q1
What is the primary purpose of a Zener diode?
  1. To rectify AC signals
  2. To regulate voltage
  3. To amplify signals
  4. To switch currents

Questions & Step-by-Step Solutions

What is the primary purpose of a Zener diode?
  • Step 1: Understand what a Zener diode is. It is a type of diode that allows current to flow in both directions, but mainly in reverse when a certain voltage is reached.
  • Step 2: Learn about voltage regulation. This means keeping the voltage at a certain level, even if the input voltage changes.
  • Step 3: Know that the Zener diode is used in circuits to maintain a stable voltage. When the voltage exceeds a specific level (called the Zener voltage), it allows current to flow in reverse.
  • Step 4: Realize that this reverse current helps to keep the voltage steady, protecting other components in the circuit from voltage spikes.
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