Quote:
Originally posted by Adam Y.
That is odd my books tell me you can't measure resistance of a motor using an ohmeter. I really do not know why though. Try getting a few D alkaline batteries or a regulated power supply.
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Your books probably say that bacause motors have a very high inductace and will have dirrerent resistances depending on a number of conditions such as mechanical load, frequency, etc. At the very low DC voltages used by most ohmeters, the inductance is negledgable and an ohmeter can be used to test for shorts if you know the resistance of a good motor of the same type. And by the way i use an variable current limited bench power supply to test motors.