If you take the example of a loudspeaker with nominal impedance of 8 or 80 ohms. Is this the ohmic resistance of the coil (measured with a dc voltage), or is this the reactance of the coil at some particular frequency?
I was thinking it's purely the ohmic resistance of the coil and therefore you should add on the reactance of the coil inductance (2∏fL), so it's like a resistor in series with an inductor, or may be in parallel? Perhaps at audio freqencies the reactance of the coil is not significant, but I have no idea what inductance levels speakers have.
In the example of motors can they be analysed in circuits the same way?
I was thinking it's purely the ohmic resistance of the coil and therefore you should add on the reactance of the coil inductance (2∏fL), so it's like a resistor in series with an inductor, or may be in parallel? Perhaps at audio freqencies the reactance of the coil is not significant, but I have no idea what inductance levels speakers have.
In the example of motors can they be analysed in circuits the same way?