Transcription of Inductance, capacitance and resistance
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Inductance, capacitance and resistance
Inductance, capacitance and resistance As previously discussed inductors and capacitors create loads on a circuit. This is called reactance. It varies depending on current and frequency. At no frequency, or DC there is no reactance. At low frequency capacitors create the most reactance At high frequency inductors create the most reactanceInductance, capacitance and resistance Since inductive reactance varies with frequency and inductance the formula for this is Xl=2 fL where fis frequency and L is Henrys and Xlis in Ohms. Ohms law for inductance is the same as that used to combine resistances in series and parallel circuits.
resistance • Since resistance doesn’t effect phase the net of the two reactances, with the lessor subtracted from the greater, will act upon total impedance at 90° to resistance. • But since reactance is already expressed in the form of Ohms in a purely reactive circuit Ohms laws applies normally for a purely inductive or capacitive circuit.
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