I want to ask the relationship between "IMPEDANCE" and "REACTANCE" with resistance in the simple R circuit.(adsbygoogle = window.adsbygoogle || []).push({});

I don't know why we should create so many terms .They are all come from OHhm's law(ie V=IR)

Is the difference is due to voltage and current is at the peak in impedance and reactance??

Also,I see some reference books stated that impendance =Vrms/Irms??

Whcih one is correct?

Last but not least, Can anybody help me to clarify this sentences concerning imedance----the ration V/I is defined as the impedance of the circuit which measure its opposition to a.c.???

Thank you

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# Alternating currect

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