Electrical power output in a D.C. generator is equal to_____________?
Correct answer: D. Mechanical power input - iron and friction losses - copper losses
- A. Electrical power developed in armature - copper losses
- B. Mechanical power input - iron and friction losses
- C. Electrical power developed in armature - iron and copper losses
- D. Mechanical power input - iron and friction losses - copper losses
Explanation
Generator output is obtained from mechanical input after rotational losses such as friction and iron losses, followed by subtraction of copper losses. Thus it is mechanical input minus iron, friction, and copper losses.
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