Contents
What is the expression of resonant frequency in series resonant circuit?
Explanation: The expression of resonant frequency is resonant frequency = 1/(2π√LC). In a series RLC circuit resonance may be produced by varying the frequency, keeping L and C constant. 8. For the circuit shown in figure determine the capacitive reactance at resonance.
What is the expression of resonant frequency in series resonant circuit 2m?
Characteristic of series resonant circuit : Resonant frequency,fr=2πLC 1.
What is Q factor in series RLC circuit?
Q factor of series resonant circuit is defind as the ratio of the voltage developed across the inductance or capacitance at resonance to the impressed voltage, which is the voltage applied across R. Q is inversely proportional to R. So, if R increases Q factor of circuit decreases or if R decreases Q increases.
What is actually a resonance mean in RLC circuit?
The resonance of a series RLC circuit occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other because they are 180 degrees apart in phase. The sharp minimum in impedance which occurs is useful in tuning applications.
What happens in a circuit at resonant frequency?
Electrical resonance occurs in an electric circuit at a particular resonant frequency when the impedances or admittances of circuit elements cancel each other. In some circuits, this happens when the impedance between the input and output of the circuit is almost zero and the transfer function is close to one.
What is the current in RLC circuit at resonance?
In series RLC circuit current, I = V / Z but at resonance current I = V / R, therefore the current at resonant frequency is maximum as at resonance in impedance of circuit is resistance only and is minimum. The above graph shows the plot between circuit current and frequency. Jun 8 2019
What is the use of RLC circuit?
RLC circuits have many applications as oscillator circuits . Radio receivers and television sets use them for tuning to select a narrow frequency range from ambient radio waves. In this role, the circuit is often referred to as a tuned circuit. An RLC circuit can be used as a band-pass filter, band-stop filter, low-pass filter or high-pass filter. The tuning application, for instance, is an example of band-pass filtering.