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Torque in a DC motor (equations?)

  1. Oct 25, 2004 #1
    hey, i've been looking EVERYwhere for equations for torque in a DC motor. i've come accorss plenty too:

    T = µBsinθ
    and T = k(magnetic flux per pole)I <- where k is a "mechanical and conversion constant" and I is the current in the armature, and i couldnt' find the magnetic flux symbol key thing.

    now here's where im troubled...which is right? if ne of these are. and if it's teh second one...wut the hell is k supposed to be?

    thanx for any help guys...itd be real awesome if someone had this knowledge tucked away in the back of their heads.
  2. jcsd
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