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

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The LC oscillator circuit is referred to as a "tank circuit" because it allows energy to oscillate back and forth between the capacitor and inductor, similar to a pendulum or water in a tank. This oscillation continues until internal resistance causes the energy to dissipate unless replenished by an external power source. The term "tank" reflects the circuit's ability to store and release energy, akin to a tank holding water. The mathematical description of this behavior aligns with that of a harmonic oscillator. Thus, the name highlights the circuit's dynamic energy exchange characteristics.
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Why the LC oscillator ckt. is also known as a TANK ckt.?
 
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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 .
 

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