Flashcards on Resonance in an RLC circuit
Resonance in an RLC Circuit: Your Complete Guide to Analysis
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69 cards
Card 1
Question: What is an RLC circuit?
Answer: An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C) connected in series or parallel.
Card 2
Question: What phenomenon do series RLC circuits exhibit?
Answer: Series RLC circuits exhibit a unique phenomenon called resonance.
Card 3
Question: What is the function of a resistor (R) in an AC circuit?
Answer: A resistor opposes the flow of current, converting electrical energy into heat. Its opposition to current is called resistance, measured in ohms (Ω).
Card 4
Question: What is the phase relationship between voltage and current across a resistor in an AC circuit?
Answer: The voltage across a resistor is in phase with the current flowing through it.
Card 5
Question: Does the resistance of a resistor change with the frequency of the AC source?
Answer: No, the resistance R is constant regardless of the frequency of the AC source.
Card 6
Question: What is the function of an inductor (L) in an AC circuit?
Answer: An inductor stores energy in a magnetic field when current flows through it and opposes changes in current, a property known as inductive reactance (X
Card 7
Question: What is the formula for inductive reactance (X_L)?
Answer: X_L = 2πfL
Card 8
Question: What are the units for inductive reactance (X_L), frequency (f), and inductance (L)?
Answer: X_L is in ohms (Ω), f is in hertz (Hz), and L is in henries (H).
Card 9
Question: What is the phase relationship between voltage and current across an inductor in an AC circuit?
Answer: The voltage across an inductor leads the current through it by 90 degrees (π/2 radians).
Card 10
Question: What is the function of a capacitor (C) in an AC circuit?
Answer: A capacitor stores energy in an electric field and opposes changes in voltage, a property known as capacitive reactance (X_C).