# Why is the LC Oscillator Circuit Called a TANK Circuit?

• Engineering
• mkbh_10
In summary, the LC oscillator is called a tank circuit because the energy oscillates back and forth between the capacitor and inductor, similar to a pendulum or water sloshing in a tank. This is due to its action as a harmonic oscillator.
mkbh_10
Why the LC oscillator ckt. is also known as a TANK ckt.?

I just found this on Wikipedia:

The charge flows back and forth between the plates of the capacitor, through the inductor. The energy oscillates back and forth between the capacitor and the inductor until (if not replenished by power from an external circuit) internal resistance makes the oscillations die out. Its action, known mathematically as a harmonic oscillator, is similar to a pendulum swinging back and forth, or water sloshing back and forth in a tank. For this reason the circuit is also called a tank circuit.

I also knew this but i was looking for different answer .

## 1. Why is the LC Oscillator Circuit Called a TANK Circuit?

The LC oscillator circuit is called a TANK circuit because it is made up of an inductor (L) and a capacitor (C) connected in parallel, which resembles a tank or storage container for energy.

## 2. How does the TANK circuit work in an LC oscillator?

The TANK circuit works by storing and releasing energy between the inductor and capacitor. The inductor stores energy in its magnetic field, while the capacitor stores energy in its electric field. As the energy oscillates back and forth between the two components, it creates a continuous oscillation or AC signal.

## 3. What are the advantages of using a TANK circuit in an LC oscillator?

One advantage of using a TANK circuit in an LC oscillator is that it allows for a high Q factor, which means the circuit can store and release energy efficiently. This results in a stable and high-frequency oscillation. Additionally, the TANK circuit has a high selectivity, meaning it can easily filter out unwanted frequencies.

## 4. Can a TANK circuit be used in other electronic circuits?

Yes, a TANK circuit can be used in other electronic circuits, such as radio receivers, filters, and amplifiers. It is also commonly used in radio frequency (RF) circuits, as it can easily tune to specific frequencies.

## 5. How is the resonance frequency of a TANK circuit determined?

The resonance frequency of a TANK circuit is determined by the values of the inductor and capacitor. It can be calculated using the formula f = 1 / (2π√(LC)), where f is the resonance frequency, L is the inductance in henries, and C is the capacitance in farads. By adjusting the values of L and C, the resonance frequency of the TANK circuit can be tuned to a desired frequency.

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