In permanens Magnet DC motricium, quod plerumque crediderunt quod clausum-rotor torque motricium TD est TST TRACTUS Torque motricium, sed detailed analysis, est differentia. Locked-rotor torque of the motor should be by applying a torque motor, the torque increase gradually, eventually make the motor to stop operation, the motor output torque and plus equals the braking torque, the torque can be thought of as the locked-rotor torque of the machine. In hoc momento motor opus current est clausus current, id = u / r, r est internum resistente machina.