What is series and parallel resonance?
Series resonance refers to the resonance that occurs in circuits where capacitors and inductors are connected in series, whereas parallel resonance refers to the resonance that occurs in circuits where the capacitors and inductors are connected in parallel.
What condition defines the resonant frequency in an RLC circuit?
“the resonance frequency in an RLC circuit is defined as the condition where the capacitive and inductive reactances cancel each other, resulting in a purely resistive impedance.”
What is resonance in LC circuit?
Resonance occurs when an LC circuit is driven from an external source at an angular frequency ω0 at which the inductive and capacitive reactances are equal in magnitude. The frequency at which this equality holds for the particular circuit is called the resonant frequency.
What is series resonance?
Series resonance is a resonance condition that usually occurs in series circuits, where the current becomes a maximum for a particular voltage. In series resonance, the current is maximum at resonant frequency. The series resonance current curve increases to a maximum at resonance then decreases as resonance is passed.
What is meant by parallel resonance?
Parallel resonance is a resonance condition that usually occurs in parallel resonant circuits, where the voltage becomes a maximum for a given current. Being a parallel resonance means the impedance is high and inrush surge current relatively low compared to a simple capacitor.
Why parallel resonance is called current resonance?
Explanation: As a parallel resonance circuit only functions on resonant frequency, this type of circuit is also known as an Rejecter Circuit because at resonance, the impedance of the circuit is at its maximum thereby suppressing or rejecting the current whose frequency is equal to its resonant frequency.
What is the formula for resonance?
Use the formula v = λf to find the resonance frequency of a single continuous wave. The letter “v” stands for the wave velocity, whereas “λ” represents the distance of the wavelength. This formula states that the wave velocity equals the distance of the wavelength multiplied by the resonance frequency.
Why is current maximum at resonance in series LCR circuit?
So, in a series resonant circuit, voltage across resistor is equal to supply voltage i.e V = Vr. 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.
What are the other names of series resonance?
Because impedance is minimum and current is maximum, series resonance circuits are also called Acceptor Circuits.
What is the difference between series and parallel resonance?
Which is why a parallel resonance circuit is also called an Anti-resonance circuit. The bandwidth of a parallel resonance circuit is defined in exactly the same way as for the series resonance circuit.
What are the characteristics of series resonance?
Characteristics of Series Resonance 1 Have the smallest impedance 2 Have extreme flowing current in the circuit 3 Current and voltage turn into in phase when cos (φ) = 1 4 Circuit current turn into proportional to circuit resistance, i.e., I ~ 1/R More
What is resonance in parallel RLC?
Parallel Resonance Tutorial Summary. Resonance occurs in a parallel RLC circuit when the total circuit current is “in-phase” with the supply voltage as the two reactive components cancel each other out. At resonance the admittance of the circuit is at its minimum and is equal to the conductance of the circuit.
What is the selectivity of a parallel resonance circuit?
The selectivity or Q-factor for a parallel resonance circuit is generally defined as the ratio of the circulating branch currents to the supply current and is given as: Note that the Q-factor of a parallel resonance circuit is the inverse of the expression for the Q-factor of the series circuit.