4.2 - Phase Angle (ϕ)
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Practice Questions
Test your understanding with targeted questions
Define phase angle in your own words.
💡 Hint: Think about the relationship between voltage and current.
What is the formula for calculating inductive reactance?
💡 Hint: Recall the relationship between inductance and frequency.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to current when inductive reactance is greater than capacitive reactance?
💡 Hint: Think about the characteristics of inductors.
True or False: The phase angle is always zero in a purely resistive circuit.
💡 Hint: Consider the relationship between elements in the circuit.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A circuit has R = 6 Ω, L = 0.15 H, and C = 80 µF. What is the phase angle at 50 Hz? Discuss its implications on circuit current.
💡 Hint: Calculate XL = ωL and XC = 1/(ωC) first.
In a specific LCR circuit, if the phase angle is 45 degrees, derive the values of XL and XC when R = 5 Ω. Explain the significance of this angle in terms of circuit performance.
💡 Hint: Use tan(ϕ) relations to express XL in terms of XC.
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