An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.
What is LC circuit and its application?
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 meant by LC circuit What are LC oscillations?
LC oscillations- The electric current and the charge on the capacitor in the circuit undergo electrical LC oscillations when a charged capacitor is connected to an inductor. The electrical energy stored in the capacitor is its initial charge which is named as qm. It is represented by, UE =12q2mC.
What is RC and LC circuit?
The three “passive” circuit elements ( resistors, capacitors, and inductors ) in combination with voltage sources (batteries, wall outlets, and so on) and switches (mechanical or electronic in the form of transistors), can be combined to make all sorts of interesting and useful electric circuits.
What is the formula of LC?
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 are the properties of LC circuit?
An LC circuit is a closed loop with just two elements: a capacitor and an inductor. It has a resonance property like mechanical systems such as a pendulum or a mass on a spring : there is a special frequency that it likes to oscillate at, and therefore responds strongly to.
Which are the LC oscillators?
- Tuned Collector Oscillator. This oscillator is a basic type of LC oscillator. ...
- Tuned Base Oscillator. ...
- Hartley Oscillator. ...
- Colpitts Oscillator. ...
- Clapp Oscillator.
What is the principle of LC oscillator?
An LC circuit, oscillating at its natural resonant frequency, can store electrical energy . See the animation. A capacitor stores energy in the electric field (E) between its plates, depending on the voltage across it, and an inductor stores energy in its magnetic field (B), depending on the current through it.
What is RC and LC oscillator?
The oscillation frequency is proportional to the inverse of the capacitance or resistance, whereas in an LC oscillator the frequency is proportional to inverse square root of the capacitance or inductance . So a much wider frequency range can be covered by a given variable capacitor in an RC oscillator.
What is LC oscillator explain with diagram?
Oscillators convert a DC input (the supply voltage) into an AC output (the waveform). ... Oscillators work because they overcome the losses of their feedback resonator circuit either in the form of a capacitor, inductor or both in the same circuit by applying DC energy at the required frequency into this resonator circuit.
How do you solve an LC circuit?
lc circuit
Begin with Kirchhoff's circuit rule . Take the derivative of each term. The voltage of the battery is constant, so that derivative vanishes. The derivative of charge is current, so that gives us a second order differential equation.
What is the difference between RC and LC filters?
The RC filter is only useful for small load currents . The LC filters are useful for heavy load currents. More power dissipated in RC filter.
Where are RC circuits used?
RC Circuits: Capacitors and resistors are often found together in a circuit. Such RC circuits are common in everyday life. They are used to control the speed of a car's windshield wipers and the timing of traffic lights; they are used in camera flashes , in heart pacemakers, and in many other electronic devices.
What is LC low pass filter?
Low-pass Filters(LPF)
Low-pass filters are filter circuits that pass DC and low-frequency signals and cut high-frequency signals . They are the most widely used filter circuits and are mainly used to cut high-frequency noise. In audio, they are also used to cut treble/mid-range sound components of bass speakers.
What is LC constant?
The time constant in a series RC circuit is R*C. The time constant in a series RL circuit is L/R . So they are a little different, but represent the time it takes to change by A*(1-e^(-1)) which is about 0.632 times the maximum change.
What is the dimensional formula of √ LC?
dimension of 1/√LC is [T-1]
