Practice - Complex Impedance (Z): The AC Equivalent of Resistance
Practice Questions
Test your understanding with targeted questions
What is the formula for calculating total impedance (Z) in an AC circuit?
💡 Hint: Remember to include both resistance and reactance.
If R = 10Ω, what would the impedance be in a purely resistive circuit?
💡 Hint: In a resistive circuit, current and voltage are in phase.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the impedance Z represent in an AC circuit?
💡 Hint: Think about the components that affect AC circuits.
True or False: Impedance is represented by a complex number.
💡 Hint: Consider what makes up impedance.
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Challenge Problems
Push your limits with advanced challenges
A circuit has a 12Ω resistor, a 0.15 H inductor, and a 200μF capacitor. Calculate the total impedance at 50 Hz.
💡 Hint: Work step-by-step, calculating reactances first.
If the total impedance Z of a circuit is given as 10 - j5Ω, what is the magnitude and phase angle?
💡 Hint: Use the Pythagorean theorem for magnitude and arctan for angle calculation.
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Reference links
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