Zener Diode Parallel Regulator Circuit Quiz
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Questions and Answers

What is the minimum load resistance ($R_L$) required to maintain an output voltage of 10 V in the zener diode circuit?

  • 100 Ω (correct)
  • 10 Ω
  • 150 Ω
  • 40 Ω

To keep the output voltage at 10 V, what is the maximum current ($I_{zmax}$) through the zener diode?

  • 15 mA
  • 30 mA
  • 20 mA (correct)
  • 10 mA

Given the series resistance of 1 kΩ and input voltage of 40 V, what is the total current ($I$) flowing through the circuit when $R_L$ is at its maximum value?

  • 60 mA
  • 40 mA
  • 30 mA
  • 50 mA (correct)

What happens to the output voltage if the load resistance ($R_L$) is decreased below the minimum required value?

<p>It decreases below 10 V (C)</p> Signup and view all the answers

Which of the following correctly describes the relationship between the load resistance ($R_L$) and zener diode current ($I_z$) in the circuit?

<p>As $R_L$ decreases, $I_z$ increases (C)</p> Signup and view all the answers

Flashcards

Minimum Load Resistance (RL)

The smallest resistance value for the load (RL) that will maintain a stable output voltage of 10V.

Maximum Zener Current (Izmax)

The highest amount of current allowed to flow through the zener diode to maintain a 10V output voltage.

Zener Diode Parallel Regulator

A circuit that uses a zener diode to maintain a constant output voltage across a load, regardless of input voltage or load changes.

Input Voltage (Vi)

The voltage supplied to the circuit.

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Zener Voltage (Vz)

The voltage across the zener diode at which it begins to conduct.

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Series Resistance (Rs)

The resistor placed in series with the zener diode.

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Maximum Load Resistance (RLmax)

The highest resistance value of the load that can be connected to the circuit.

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Output Current (IL)

The current that flows through the load.

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Zener Diode Current (Iz)

Current flowing through the Zener Diode.

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Total Current (I)

Sum of the current through the Zener diode and the load.

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Study Notes

Zener Diode Parallel Regulator Circuit

  • Circuit diagram provided (Figure 2)
  • Input voltage (Vi): 40 V
  • Zener voltage (Vz): 10 V
  • Series resistance (Rs): 1 kΩ
  • Maximum load resistance (RLmax): 150 Ω

Calculations

  • Minimum Load Resistance (RL): The question asks for the minimum load resistance that will maintain a 10V output voltage. This information is not present in the provided data.
  • Maximum Zener Current (Izmax): The question also asks for the maximum zener current that will sustain the 10V output voltage. This information is not present in the provided data.

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Description

Test your understanding of the Zener diode parallel regulator circuit. This quiz includes calculations related to minimum load resistance and maximum Zener current to maintain a specific output voltage. Dive deep into the details of voltage regulation and circuit analysis.

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