Practice - Impedance of a Resistor (ZR)
Practice Questions
Test your understanding with targeted questions
What is the impedance of a purely resistive circuit with a resistance of 5 Ohms?
💡 Hint: Remember that for resistors, the impedance is purely real.
If the current through a 20 Ohm resistor is 2 A, what is the voltage across the resistor?
💡 Hint: Use Ohm's Law.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What defines the impedance of a resistor?
💡 Hint: Think about what it means to be purely resistive.
In a resistive circuit, the voltage and current are?
💡 Hint: Consider their behavior in a sine graph.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A circuit has a combination of a 50Ω resistor and a 10Ω resistor in series. Calculate the total impedance of the series circuit.
💡 Hint: In series, simply add the resistances.
You have a 20Ω resistor in an AC circuit with a current of 3 A. Calculate the voltage across the resistor and explain its significance.
💡 Hint: Consider the relationship between voltage, current, and resistance.
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Reference links
Supplementary resources to enhance your learning experience.