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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Convert the phasor I=10∠-30° A to time-domain.
💡 Hint: Convert using i(t) = I_peak sin(ωt + phase angle).
Question 2
Easy
What is the formula for calculating inductive reactance?
💡 Hint: Remember that ω is determined by the frequency.
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 formula for calculating real power in AC circuits?
- P = VRMS IRMS cos(ϕ)
- P = VRMS IRMS
- P = VI
💡 Hint: Recall the significance of cos(ϕ) in calculating power.
Question 2
True or False: At resonance in an RLC circuit, the impedance is maximum.
- True
- False
💡 Hint: Think about how inductive and capacitive reactance behave at resonance.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An RLC circuit consists of a resistor (R=10Ω), inductor (L=0.2H), and capacitor (C=100μF). Determine the resonant frequency and total impedance at resonance.
💡 Hint: Remember to calculate LC before moving to the frequency.
Question 2
Given an AC circuit with VRMS=120V, an inductive reactance of 40Ω, and a capacitive reactance of 30Ω, calculate the total current drawn from the source.
💡 Hint: Convert reactance into impedance using phasor form.
Challenge and get performance evaluation