How can we know that the motor has high speed or high torque? Is there any method to know Share with your friends Share 0 Sachin Pandey answered this Dear StudentTorque of motor is given by formulaT=60*Power2π*Speed which meansat constant power,T α1SpeedAlso Torque α ISo Torque can be measured by this formula and for practical purposes speed can be measured by a feedback device stroboscope.Regards 0 View Full Answer