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4 cards from this section. Quick, good the night before a test.
What is the formula for impedance in an AC circuit?
Consider both resistance and reactance.
What is the unit of impedance?
It’s the same unit as resistance.
What does 'Z' stand for in AC circuits?
Think about what opposes the flow of current.
True or False: The impedance is always greater than resistance.
Consider reactance's impact on impedance.
Consider a series LCR circuit with R = 10Ω, L = 30 mH, and C = 100µF. Calculate the impedance at resonance and determine the resonant frequency.
Use resonance equations to find relevant parameters.
In an LCR circuit, if the inductive reactance is 15Ω, and the capacitive reactance is 10Ω, calculate the phase angle and describe the behavior of the circuit.
Start with the phase angle formula and plug in given values accordingly.
5 more questions in this section. Enroll free to practise them all.
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