Back مكثف متغير Arabic Condensador variable Catalan Variabel kondensator Danish Variabler Kondensator German Condensador variable Spanish خازن متغیر Persian Säätökondensaattori Finnish קבל משתנה HE Változtatható kapacitású kondenzátor Hungarian Kapasitor variabel ID
A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C circuits to set the resonance frequency, e.g. to tune a radio (therefore it is sometimes called a tuning capacitor or tuning condenser), or as a variable reactance, e.g. for impedance matching in antenna tuners.