A SYNCHRONOUS MOTOR IS TAKING 50 A AT 440 VOLTS AND 0.9 POWER FACTOR LAGGING. THE EFFECTIVE RESISTANCE OF THE ARMATURE I

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A SYNCHRONOUS MOTOR IS TAKING 50 A AT 440 VOLTS AND 0.9 POWER FACTOR LAGGING. THE EFFECTIVE RESISTANCE OF THE ARMATURE I

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A SYNCHRONOUS MOTOR IS TAKING 50 A AT 440 VOLTS AND 0.9 POWERFACTOR LAGGING. THE EFFECTIVE RESISTANCE OF THE ARMATURE IS 0.8OHM. IF THE FRICTION AND WINDAGE LOSS IS 500 WATTS, CALCULATE THEEFFICIENCY OF THE MOTOR.
a. 83.77% b. 87.97% c. 87.37% d. 81.11%
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