in RLC series circuit when the frequency of AC source is very low the circuit is a/an
Correct answer: B. capacitive circuit
- A. resistive circuit
- B. capacitive circuit
- C. inductive circuit
- D. resonant circuit
Explanation
In an RLC series circuit, when the frequency of the AC source is very low, the circuit behaves like a capacitor-dominated circuit, also known as a capacitive circuit.At low frequencies, the capacitive reactance (Xc) is high, and the inductive reactance (Xl) is low. Since Xc is high, it impedes the flow of current, causing the circuit to behave primarily as a capacitive circuit. The total impedance (Z) of the circuit is close to the capacitive reactance.The formula for capacitive reactance is:Xc = 1 / (2 * π * f * C)where f is the frequency and C is the capacitance. As the frequency decreases, the capacitive reactance increases, making it the dominant factor in the circuit
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