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2 cards from this section. Quick, good the night before a test.
What is a phasor?
Think of how we represent sine waves graphically.
How do we calculate impedance in an RLC circuit?
Recall the formula includes resistance and reactance.
What does the phasor diagram represent?
Think about what tools are used for relationships in vector analysis.
The impedance of an RLC circuit is defined as the total opposition to what?
Focus on what AC factors contribute to this resistance.
A series RLC circuit has R = 50 Ω, L = 0.47 H, and C = 10 µF. Calculate the impedance at 60 Hz and the phase angle.
Remember to convert units appropriately!
Discuss how the phase angle changes as frequency increases and how it impacts the circuit's performance.
Use sine and cosine to articulate relationships.
4 more questions in this section. Enroll free to practise them all.
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