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In: Electrical Engineering

When running at 4000rpm with an applied voltage of 42v, a DC permanent magnet motor develops...

When running at 4000rpm with an applied voltage of 42v, a DC permanent magnet motor develops 23.1W of output power. The motor has a theoretical no-load speed of 6000rpm at an applied voltage of 42v.

What is the motor output torque at 4000rpm in N-m, What is the motors theoretical back-EMF constant, What is the motors theoretical torque constant, What is the motors theoretical stall torque, What is the motors armature resistance, What is the motors efficiency at 4000rpm when operated at 42v.

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