In an RLC series circuit, when the frequency of the AC source is very low, the circuit is a/an
Correct answer: A. Resistive circuit
- A. Resistive circuit
- B. Capacitive circuit
- C. Inductive circuit
- D. Resonant circuit
Explanation
When the frequency of the AC source is very low, the inductive reactance (\(X_L\)) and capacitive reactance (\(X_C\)) in the circuit become negligible compared to the resistance (\(R\)). In this case, the circuit behaves almost like a pure resistive circuit.
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Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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