I am trying to measure the resistance of a coil with a digital meter. I know that with an AC coil there will be a resistive componenet and a reactive component, and together these make up the total impedance of the coil. It is this total impedance that determines current.
I know that you cannot measure reactance with a meter, and when you measure a coil with a meter, you are only reading the resistive portion of the coil with may be very low and only a fraction of the total impedance of the coil.
But what if the wattage rating is given for the coil? Since the wattage rating is a result of the resistive component can you simply use the P=V^2/R to determine what the resistance of the coil should be? Should you then be able to see this resistance component with a meter? (All of this ignoring the fact that resistance changes with temperature). Total coil kVA will be a result of including the reactive component with total impedance being Z = R+xj. This is why you cannot use P=IV then V=IR to determine resistance based off of rated voltage and current?
If this were a DC coil then would this be a direct measurment since there is no reactance?