Editing LC circuit (section)

== Applications ==
[[File:Tuned circuit of shortwave radio transmitter from 1938.jpg|thumb|Output tuned circuit of [[shortwave]] [[radio transmitter]] from 1938]]
[[File:Low cost DCF77 receiver.jpg|thumb|LC circuit ''(left)'' consisting of ferrite coil and capacitor used as a tuned circuit in the receiver for a [[radio clock]]]]
The resonance effect of the LC circuit has many important applications in signal processing and communications systems. 
* The most common application of tank circuits is '''tuning''' radio transmitters and receivers. For example, when tuning a radio to a particular station, the LC circuits are set at resonance for that particular [[carrier frequency]].
* A [[Series and parallel circuits|series]] resonant circuit provides '''voltage magnification'''.
* A [[Series and parallel circuits|parallel]] resonant circuit provides '''current magnification'''.
* A parallel resonant circuit can be used as load impedance in output circuits of RF amplifiers. Due to high impedance, the gain of amplifier is maximum at resonant frequency.
* Both parallel and series resonant circuits are used in [[induction heating]].

LC circuits behave as electronic [[resonators]], which are a key component in many applications:
* [[Electronic amplifier|Amplifiers]]
* [[Electronic oscillator|Oscillators]]
* [[electronic filter|Filters]]
* [[Tuner (electronics)|Tuners]]
* [[Frequency mixer|Mixers]]
* [[Foster–Seeley discriminator]]
* [[Contactless smart card|Contactless cards]]
* [[Graphics tablet]]s
* [[Electronic article surveillance]] (security tags)