You are welcome. Tuning a radio station is also a resonance.

来源: xia23 2023-10-28 12:39:30 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 次 (5802 bytes)

I ask Bard, tuning a radio station, is it a phenomenon of resonance.

Bard answer:

Yes, tuning a radio station is a phenomenon of resonance. Resonance is a phenomenon in which an object or system absorbs or emits more energy at a certain frequency than it does at other frequencies. This is because the object's or system's natural frequency matches the frequency of the incoming energy.

Radio stations broadcast their signals at specific frequencies. When you tune your radio to a particular station, you are adjusting the resonant frequency of the radio's receiver circuit so that it matches the frequency of the radio station's signal. This allows the radio to receive the signal from the radio station and reject signals from other radio stations.

Radio receivers typically use an LC circuit to tune to a specific frequency. An LC circuit is a circuit that consists of an inductor (L) and a capacitor (C). The resonant frequency of an LC circuit is given by the following equation:

f_r = 1 / (2 * pi * sqrt(L * C))

where:

  • f_r is the resonant frequency in hertz (Hz)
  • L is the inductance in henrys (H)
  • C is the capacitance in farads (F)

By adjusting the inductance or capacitance of the LC circuit, the resonant frequency of the circuit can be changed. This is how radio receivers are able to tune to different radio stations.

As another example, a bridge collapsed in 1850, was also a resonance event:

https://en.wikipedia.org/wiki/Angers_Bridge

9 Everyday Examples Of Resonance:

https://studiousguy.com/everyday-examples-of-resonance/

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