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reactance

Capacitive and inductive reactances are not real, frequency-independent resistances like ohmic resistances, but frequency-dependent imaginary resistances.

Reactances are frequency dependent and together with an ohmic resistor they form the impedance. Depending on whether it is a capacitive or inductive reactance, the reactance increases or decreases with frequency. The inductive reactance increases linearly with frequency, whereas the capacitive reactance decreases inversely proportional with frequency.

Calculating inductive and capacitive

Calculating inductive and capacitive

reactance Since voltage and current are not in phase in frequency-dependent reactances, no electrical energy is converted to heat. However, since the current flow is limited by the reactances, their behaviour is comparable to that of an ohmic resistor; they are therefore also referred to as imaginary resistors.

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Englisch: reactance
Updated at: 14.11.2017
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