Originally posted by windoze killa@Jun 9 2006, 02:40 AM
When you measure the DC resistance of that coil which is what you are doing when you put an ohm meter across the winding it has very little to do with inductive reactance.

[post=17655]Quoted post[/post]​

Absolutely true. Perhaps I got a bit carried away trying to over simplify. The actual formula for is:

Xl = 2(pi)fL

XL is inductive reactance
f is frequency
L is inductance

Assuming f is a constant (60Hz), the only variable would be L, which would be dependant on the design of the motor, ie

the thickness of the wire, the tightness of the windings, the spacing of the windings, the capacitance between the windings

I only looked up counter EMF, and answered off the cuff with reactance, using only memory of class materials obtained in '89. Bad idea, especially considering how closely related these two theories are.

My appologies.

 

Windozekilla is right; also remember the distance of receptacle from panelboard adds even more Vdrop.