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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a positive phase angle indicate?
💡 Hint: Think about the timing relationship.
Question 2
Easy
What does a negative phase angle indicate?
💡 Hint: Consider when one waveform occurs relative to another.
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 does a phase angle of 90° indicate in an AC circuit?
- Current leads Voltage
- Voltage leads Current
- They are in phase
💡 Hint: Think of inductive circuits.
Question 2
Is a phase angle of 0° indicative of leading, lagging, or in phase?
- True
- False
💡 Hint: Consider how they relate to each other.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a circuit with voltage described as v(t) = 220 sin(100t + 45°) and current as i(t) = 10 sin(100t - 30°). Calculate the phase difference, and describe what it means for power calculations.
💡 Hint: Use the phase angle calculation and relate it to the power factor.
Question 2
You have an RLC circuit with the following values: R = 50Ω, L = 0.2H, and C = 20μF. Calculate the impedance and phase angle when connected to a 100V source at 50Hz.
💡 Hint: Calculate impedance before determining the phase angle.
Challenge and get performance evaluation