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IIT JEE > Learn IIT JEE Coaching > Define capacitor reactance. Write its S.I. units.
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Define capacitor reactance. Write its S.I. units.

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Capacitive reactance (symbol XC) is a measure of a capacitor's opposition to. AC (alternating current). The capacitive reactance X C equals the reciprocal of the product of 2?, the frequency of the current, and the capacitance of that part of the circuit, simply X C = 1/(2?fC). Capacitive reactance...
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Capacitive reactance (symbol XC) is a measure of a capacitor's opposition to. AC (alternating current). The capacitive reactance X C equals the reciprocal of the product of 2?, the frequency of the current, and the capacitance of that part of the circuit, simply X C = 1/(2?fC). Capacitive reactance has S.I.units of ohms. read less
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Teaching professional with 12 of experience in teaching

Capacitive reactance (symbol XC) is a measure of a capacitor's opposition to. AC (alternating current). Like resistance it is measured in ohms, but. reactance is more complex than resistance because its value depends on the. frequency (f) of the electrical signal passing through the capacitor as well...
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M.Sc. Biomedical Genetics, B.Sc. Biotechnology

Opposition offered by the capacitor to the flow of a.c. through it is called capacitive reactance. It is denoted by XC. Its S.I. unit is ohm.
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B.Tech(EC/EE/IN),Math(IX,X,XI,XII std.),Physics(IX,X,XI,XII std.) CBSE/ICSE/IB.

Xc=1/wc, si unit ohm
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Math Educator for Std.11th ,12th , Engineering Entrance and Degree Level with 11+ Years Experience

In an AC circuit in which the applied voltage signal is continually changing from a positive to a negative polarity at a rate determined by the frequency of the supply, as in the case of a sine wave voltage, for example, the capacitor is either being charged or discharged on a continuous basis at a rate...
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In an AC circuit in which the applied voltage signal is continually changing from a positive to a negative polarity at a rate determined by the frequency of the supply, as in the case of a sine wave voltage, for example, the capacitor is either being charged or discharged on a continuous basis at a rate determined by the supply frequency. As the capacitor charges or discharges, a current flows through it which is restricted by the internal resistance of the capacitor. This internal resistance is commonly known as Capacitive Reactance. it is inversely proportional to the angular frequency and the capacitance and is due to the presence of capacitance in an alternating-current circuit. its S.I. unit is in Ohms. read less
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