Measurements on a small permanent-magnet dc motor indicate that it has an armature resistance of 4.6 Ω. With an applied armature voltage of 5 V, the motor is observed to achieve a no-load speed of 11,210 r/min while drawing an armature current of 12.5 mA. a. Calculate the motor torque constant Km in V/(rad/sec)
Measurements on a small permanent-magnet dc motor indicate that it has an armature resistance of 4.6 Ω. With an applied armature voltage of 5 V, the motor is observed to achieve a no-load speed of 11,210 r/min while drawing an armature current of 12.5 mA. a. Calculate the motor torque constant Km in V/(rad/sec)
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Measurements on a small permanent-magnet dc motor indicate that it has an armature resistance of 4.6 Ω. With an applied armature voltage of 5 V, the motor is observed to achieve a no-load speed of 11,210 r/min while drawing an armature current of 12.5 mA.
a. Calculate the motor torque constant Km in V/(rad/sec).
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