Differences between impedance, resistance, and reactance

　・In Japanese
Prerequisites
　・Alternating current

■Differences between impedance, resistance, and reactance

Impedance is the electrical resistance in the entire AC circuit, resistance is the resistor part of it, and reactance is the electrical resistance of the coil and capacitor parts. The unit is Ω. In particular, the electrical resistance of a coil is called inductive reactance, and the electrical resistance of a capacitor is called capacitive reactance.



Note that L is called inductance (induction coefficient) and is a coefficient that indicates how easily induced electromotive force is generated. C is called capacitance (electrostatic capacity) and is a coefficient that indicates how easily a charge can be stored in a capacitor.

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