# Why is it called Rejector circuit?

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 resonance circuit explain in brief?

Series Resonance Circuit. Resonance occurs in a series circuit when the supply frequency causes the voltages across L and C to be equal and opposite in phase. A resonant circuit consists of R, L, and C elements and whose frequency response characteristic changes with changes in frequency.

## What is resonant circuit and its types?

The resonant circuit can be a simple series or parallel LC circuit, or a circuit formed by an inductor and two capacitors (parallel LCC) or two inductors and one capacitor (parallel LLC), or a parallel LLCC circuit (Fig. 12a).

## What are the applications of Rejector circuit?

A rejector circuit is a parallel LC resonant circuit used in communications and broadcasting as well as filter circuits to selectively reject a signal of a certain frequency.

## What is the formula of Q factor?

The Q factor of the pMUT can be determined by the real part of the impedance frequency spectrum, which is defined as Q = fr/Δf, where the resonance frequency fr is the frequency at which the real part of the impedance reaches its maximum, Δf is the width of the peak at its half height, so-called 3 dB bandwidth.

## What is a acceptor circuit?

Acceptor circuit provides the maximum response to currents at its resonant frequency. Series resonance circuit is known as acceptor circuit because the impedance at the resonance is at its minimum so as to accept the current easily such that the frequency of the accepted current is equal to the resonant frequency.

## What is acceptor and Rejector circuit in Shaalaa?

Solution. The LCR series and parallel resonant circuits are respectively called as acceptor circuit, rejector circuit.

## What is acceptor circuit class 12?

The acceptor circuit provides the maximum response to currents at its resonant frequency. As a series resonance circuit, the only function on resonant frequency and the impedance of the acceptor circuit is minimum but the voltage can be increased.

## What is resonance 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 is resonance circuit class 12?

At the resonant frequency, the capacitive reactance and inductive reactance are equal. In an alternating current, if the phase of the applied potential voltage difference and the current flowing in the circuit are the same, then the circuit is called a resonance circuit.

## What is the formula of series resonance circuit?

Z r = R 2 + ( X L – X C ) 2.

## What is the condition of resonant circuit?

Resonance occurs in a circuit when the reactances within a circuit cancel one another out. As a result, the impedance is at a minimum and the current is at a maximum. Mathematically, the condition for resonance is. X L = X C .

## Why do we use LCR circuits?

Importance of LCR Circuit LCR circuits are important in various applications. LCR circuits help reduce power consumption by controlling too much current flow through a device or component, causing it to overheat. LCR circuits also help reduce voltage fluctuations that can damage electronic devices.

## What are the uses of resonance?

One use for resonance is to establish a condition of stable frequency in circuits designed to produce AC signals. Usually, a parallel (tank) circuit is used for this purpose, with the capacitor and inductor directly connected together, exchanging energy between each other.

## Which of the following circuit is called Rejector circuit?

So, the parallel tuned circuit rejects signals at or near its resonant frequency and allows signals of frequencies other than resonance to pass. This is why the parallel tuned circuit is called a rejector circuit.

## What is the full form of RLC circuit?

RLC circuits are electric circuits that consist of three components: resistor R, inductor L, and capacitor C, hence the acronym RLC.

## What is the principle of RLC circuit?

Basic Principle of RC/RL and RLC circuits: When the switch is turned on the voltage across the resistor (red wave) reaches its maximum and the voltage across capacitor (blue wave) remains at zero. Then the capacitor charges up and Vr becomes zero and Vc becomes maximum.

## What is the unit of Q factor?

Quality factor (Q) or coil Q-factor is a dimensionless unit for the losses of a coil, quartz, or a resonator. For coils this refers to the ohmic losses of the coil-wire. They are inversely proportional for the coil quality and are calculated from the ratio of reactance to ohmic resistance.

## What is Q factor of a circuit?

The quality factor Q for the circuit is the electric energy stored in the circuit divided by the energy dissipated in one period. The Q of a circuit is an important quantity in certain applications, as in the case of electromagnetic waveguides and radio-frequency cavities where…

## What is Q value of circuit?

The Q, or quality, factor of a resonant circuit is a measure of the “goodness” or quality of a resonant circuit. A higher value for this figure of merit corresponds to a more narrow bandwidth, which is desirable in many applications.

## Where is acceptor circuit used?

at the input stage of a radio receiver at the output stage of a radio wave transmitterfor parallel resonance to pass direct current.

## What is RLC acceptor circuit?

An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. The name of the circuit is derived from the letters that are used to denote the constituent components of this circuit, where the sequence of the components may vary from RLC.

## Why is series resonant circuit known as acceptor circuit and parallel resonant circuit as Rejector circuit?

This is Expert Verified Answer – Series resonance circuit is aka acceptor circuit as it accepts current at resonant frequency. – Impedance is minimum here. – Voltage is magnified in acceptor circuit. – Parallel resonance circuit is aka rejector circuit as its current is minimum at resonant frequency.

## What is resonance frequency?

Resonant frequency is the natural frequency where a medium vibrates at the highest amplitude. Resonant frequency is usually denoted as f0. Resonance is witnessed in objects in equilibrium with acting forces and could keep vibrating for a long time under perfect conditions.

## What is resonance in RLC parallel circuit?

We know that the resonant frequency, fr is the frequency at which, resonance occurs. In parallel RLC circuit resonance occurs, when the imaginary term of admittance, Y is zero. i.e., the value of 1XC−1XL should be equal to zero. ⇒1XC=1XL. ⇒XL=XC.