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I have a confusion about the rotation of dc series motor..Suppose I put some load on it and turned it on..Due to no initial back emf, high current will flow in the armature (and field) and due to high starting torque, the motor will start rotating at say,1000 rpm. This will induce back emf which will reduce the current and the flux. Now, as the flux is weakened at the same 1000 rpm, back emf should also reduce leading to rise in current and flux. This will produce more torque and speed will increase, increasing back emf and reducing the current. If I'm right so far, this increase-decrease should go on forever and a steady speed should never be attained. But it's of course not the reality..Where am I screwing this up?? (I'm sure I am, but I just don't know where exactly..)