Test: Frequency Variation in a Series RLC Circuit - Electrical Engineering (EE) MCQ

We know that Quality factor is equal to the resonant frequency divided by the bandwidth. Substituting the values from the given question, we get Q=50.

We know that Quality factor is equal to the resonant frequency divided by the bandwidth. It is one frequency divided by another hence it has no unit.

We know that Quality factor is equal to the resonant frequency divided by the bandwidth. Hence as the bandwidth increases, quality factor decreases.

We know that Quality factor is equal to the resonant frequency divided by the bandwidth. Hence as the resonant frequency increases, quality factor also increases.

The frequency of a system is said to be resonating when the value of the capacitive reactance and the inductive reactance is the same.

At resonance condition, the frequency is maximum since the inductive reactance is equal to the capacitive reactance and the voltage and current are in phase.

The current leads the voltage in a series RLC circuit when the supply voltage is less than the resonant voltage.

The power factor for a series RLC circuit in resonance condition is always 1 because the current is in phase with the voltage under resonance condition.

In resonance condition of a series RLC circuit, the current is always in phase with the voltage because the reactance is neither capacitive nor inductive.

The correct formula for quality factor is Q=fr/BW, where fr is the resonant frequency, BW is the bandwidth frequency and Q is the quality factor.