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A permanent magnet DC motor with Kv = 0.7V-s is tested under the following two conditions:...

A permanent magnet DC motor with Kv = 0.7V-s is tested under the following two conditions:

Test 1: Apply 120V; motor is unloaded, Ia = 2A and ?=160 rad/s

Test 2: Apply 120V: increase load torque until Ia = 6A and ?=137.1 rad/s Find the mechanical torque loss and the load torque in test 2. Assume mechanical torque loss is constant (independent of speed).

TMECH LOSS = __________

TLOAD = __________

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