The current flowing through the +Ve terminal of the LC circuit equals the current flowing through the inductor (L) and the capacitor (C) (V = VL + VC, i = iL = iC). When the amplitude of the ‘XL‘ inductive reactance grows, the frequency also increases.

Similarly, How do you find the time constant of an LC circuit?

τ = RC = 1/2πf


  1. τ = RC = is the time constant in seconds.
  2. R is the resistance in series in ohms (Ω)
  3. C is the capacitance of the capacitor in farads.
  4. f


    = cutoff frequency in hertz.

Additionally, What is LC current? 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. … For a circuit model incorporating resistance, see RLC circuit.

What does LC mean in electrical?

An LC circuit (also known as an LC filter or LC network) is defined as an electrical circuit consisting of the passive circuit elements an inductor (L) and a capacitor (C) connected together. It is also called a resonant circuit, tank circuit, or tuned circuit.

What is the frequency of LC circuit?

The natural frequency of an LC – circuit is 1,25000 cycles per second.

What is the constant for LC circuit?

An LC circuit (either series or parallel) has a resonant frequency, equal to f = 1/(2⋅π⋅√(LC)), where f is in Hz, L is in Henries, and C is in Farads.

How do you find the time constant of a complex RLC circuit?

At the RL circuit, at time = L/R sec, the current becomes 63.3% of its final steady-state value. The L/R is known as the time constant of an LR circuit. Let us plot the current of the inductor circuit. The time constant of an LR circuit is the ratio of inductance to the resistance of the circuit.

What is LC full form?

A Letter of Credit (LC) is a document that guarantees the buyer’s payment to the sellers. It is issued by a bank and ensures timely and full payment to the seller. … A letter of credit is issued against a pledge of securities or cash.

What is the importance of LC circuit?

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 does an LC filter do?

LC filters refer to circuits consisting of a combination of inductors (L) and capacitors (C) to cut or pass specific frequency bands of an electric signal. Capacitors block DC currents but pass AC more easily at higher frequencies.

How does an LC tank circuit work?

The oscillatory circuit, also called the L-C circuit or tank circuit, consists of an inductive coil of inductance L connected in parallel with a capacitor of capacitance C. … The current starts flowing in the circuit but the self induced emf in the coil opposes the current flow. Thus the rate of rise of current is slow.

How an LC circuit is being applied to a signal detector?

The resonance effect of the LC circuit has many important applications in communication systems and signal processing. The parallel resonance circuit generates current amplification. The series resonance circuit generates voltage amplification. The LC circuit is used to select or generate a specific frequency signal.

What is natural frequency of LC oscillation?

The natural frequency of the LC circuit is 12π√LC 1 2 π L C , where L is the inductance and C is the capacitance.

What is natural frequency of LC circuit Shaalaa?

The natural frequency of an LC circuit is 125 kHz.

What is the natural frequency of LC circuit What is the reactance?

Reactance of the circuit at this frequency is zero.

Does an LC circuit have a time constant?

An LC circuit never settles, so there is no transient period and ‘time constant’ does not apply.

What is LC time constant?

The characteristic time constant τ is τ=LR τ = L R , where L is the inductance and R is the resistance. In the first time constant τ, the current rises from zero to 0.632I0, and 0.632 of the remainder in every subsequent time interval τ.

What is the time constant for an RLC circuit?

The time constant of an RLC circuit describes how a system transitions between two driving states in the time domain, and it’s a fundamental quantity used to describe more complex systems with resonances and transient behavior.

How do you find the RC of a circuit?

For a series RC circuit, we get Z=√R2+(1ωC)2 Z = R 2 + ( 1 ω C ) 2 . We see that the amplitude of the current will be V/Z=V√R2+(1ωC)2 V / Z = V R 2 + ( 1 ω C ) 2 .

What is an LC?

A limited company (LC) is a general form of incorporation that limits the amount of liability undertaken by the company’s shareholders. It refers to a legal structure that ensures that the liability of company members or subscribers is limited to their stake in the company by way of investments or commitments.

What does LC stand for in business?

The abbreviation LLC is shorthand for limited liability company, and LC stands for limited company. Both abbreviations refer to a business where the owners are not liable for the debts and obligations of the company. Incorporating as a limited company will restrict the liability of the shareholders of the company.

What is LC in banking?

A letter of credit is essentially a financial contract between a bank, a bank’s customer and a beneficiary. Generally issued by an importer’s bank, the letter of credit guarantees the beneficiary will be paid once the conditions of the letter of credit have been met.

What are the properties of an 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.

What is the use of resonance circuit?

Resonant circuits are used in radio and television tuners to pick out broadcast signals of specific frequencies.