The motor of Problem 11.5 has a moment of inertia of 6.4 x 10-7 oz in
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The motor of Problem 11.5 has a moment of inertia of 6.4 x 10-7 oz · in · sec2. Assuming it is unloaded and neglecting any effects of rotational loss, calculate the time required to achieve a speed of 12,000r/min if the motor is supplied by a constant armature current of 100 mA.
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