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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Zener voltage of a Zener diode?
💡 Hint: Think about the voltage level it maintains.
Question 2
Easy
Why do we use a current-limiting resistor in a Zener circuit?
💡 Hint: What happens if too much current flows?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary function of a Zener diode in a circuit?
- To allow current only in one direction
- To maintain a constant voltage across terminals
- To amplify signals
💡 Hint: Think about its use in voltage regulation.
Question 2
True or False: The Zener voltage can change significantly with load current.
- True
- False
💡 Hint: This is a key feature of Zener diodes.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a Zener voltage regulator for a circuit that requires a stable 5V output despite variations in load current up to 15mA. V_in can vary from 9V to 12V. Calculate R_S and check the power dissipation of the Zener given it has a maximum power rating of 0.5W.
💡 Hint: Use minimum and maximum values for calculations.
Question 2
Assuming a load resistance of 100Ω draws a load current of 20mA. If the output voltage drops to 4.5V while the Zener voltage is still supposed to be 5V, assess whether the Zener is failing or if the load is affecting output.
💡 Hint: Evaluate the circuit conditions at maximum load.
Challenge and get performance evaluation