In RLC series AC circuit if the applied frequency is less than the resonance frequency then the circuit will be:
Correct answer: B. Capacitive
- A. Inductive
- B. Capacitive
- C. Positive
- D. None
Explanation
In an RLC series AC circuit, the behavior of the circuit is determined by the relative magnitudes of the capacitive and inductive reactances. When the applied frequency is less than the resonance frequency, the capacitive reactance (XC = 1/ωC) is greater than the inductive reactance (XL = ωL), causing the circuit to behave as a capacitive circuit. As a result, Option B is correct. Options A and C are incorrect because they do not accurately describe the behavior of the circuit under these conditions. Option D is incorrect because it suggests no behavior, which is not applicable.
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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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