Contents
What is resonance in parallel LC circuit?
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. Also at resonance the current drawn from the supply is also at its minimum and is determined by the value of the parallel resistance.
Can we have resonance in LC circuit?
In the series configuration, resonance occurs when the complex electrical impedance of the circuit approaches zero. Therefore the series LC circuit, when connected in series with a load, will act as a band-pass filter having zero impedance at the resonant frequency of the LC circuit.
How do you find the resonant frequency of a parallel LC circuit?
The parallel LC circuit connected in parallel with the load will act as a band-pass filter.
- At frequency below resonant frequency i.e. f> XC.
- At frequency above resonant frequency i.e. f>f0, XC >> XL.
- At resonant frequency i.e. f = f0, XL = XC, the current is minimum and impedance is maximum.
What is the condition for resonance in LC circuit?
When the circuit allows maximum current for a given frequency of the source of alternating supply for which capacitive reactance becomes equal to the inductive reactance . The impedance of LCR Circuit is minimum and hence current is maximum. Hope this helps.
How do you calculate an LC circuit?
Resonance in the LC circuit appears when the inductive reactance of the inductor becomes equal to the capacitive reactance of the capacitor. So: xL= 2 * π * f * L. xC= 1 / (2 * π * f * C)
What is the resonant frequency of LC circuit?
10 kHz
Resonant frequency of a LC circuit is 10 kHz.
How do you find the maximum current in a LC circuit?
The angular frequency of the LC circuit is given by Equation 14.6. 10. To find the maximum current, the maximum energy in the capacitor is set equal to the maximum energy in the inductor.
What is the condition of resonance?
resonance: In an electrical circuit, the condition that exists when the inductive reactance and the capacitive reactance are of equal magnitude, causing electrical energy to oscillate between the magnetic field of the inductor and the electric field of the capacitor.
What is bandwidth in resonance?
The bandwidth (BW) of a resonant circuit is defined as the total number of cycles below and above the resonant frequency for which the current is equal to or greater than 70.7% of its resonant value. The two frequencies in the curve that are at 0.707 of the maximum current are called band, or half-power frequencies.
Where are LC circuits used?
The LC circuit is used to select or generate a specific frequency signal. The application of LC circuits is reflected in many electronic devices, especially radio devices, such as transmitters, radio receivers and television receivers, amplifiers, oscillators, filters, tuners and frequency mixers.
What is the condition for parallel resonance?
Frequency at Resonance Condition in Parallel resonance Circuit. The value of inductive reactance XL = 2πfL and capacitive reactance XC = 1/2πfC can be changed by changing the supply frequency. As the frequency increases, the value of X L and consequently the value of Z L increases. As a result, there is a decrease in the magnitude of current I 2 and this I 2 current lags behind the voltage V.
What are 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.
How do you solve series parallel circuit?
To analyze a series-parallel combination circuit, follow these steps: Reduce the original circuit to a single equivalent resistor, re-drawing the circuit in each step of reduction as simple series and simple parallel parts are reduced to single, equivalent resistors. Solve for total resistance.
What is LC resonance?
Resonance occurs when an LC circuit is driven from an external source at an angular frequency ω 0 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. The resonant frequency of the LC circuit is.