The output power of a dc motor is given by
A. EIa.
B. EbIa.
C. EbIa2.
D. none of these.
Show Answer
Answer: B
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The correct answer is B. The output power of a DC motor is given by the product of the back electromotive force (Eb) and the armature current (Ia). Mathematically, it can be expressed as:
Output Power = Eb * Ia
The back electromotive force (Eb) represents the voltage generated in the armature of the motor due to its rotation, and the armature current (Ia) is the current flowing through the armature winding. Multiplying these two quantities gives the output power of the motor.