Why Torque and Speed are Inversely Proportional in an Electric Motor
“Why does the torque of an electric motor decrease when the speed increases?”
The torque and speed are the two defining parameters of the operation of an electric motor. But when the speed increase, the torque tends to decrease. This is because the torque is supplied by the current, while faster speeds increase the back emf which not only limits its final speed but blocks incoming current, therefore lowering torque. This is Why Torque and Speed are Inversely Proportional in an Electric Motor.