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Answer :
Final answer:
To find the generator current, use the formulas for back emf and Ohm's law. The generator current is approximately 2.326A.
Explanation:
To find the generator current, we first need to determine the back emf of the motor. The back emf can be calculated using the formula:
Eb = V - Ia * Ra
Where, Eb is the back emf, V is the supply voltage, Ia is the armature current, and Ra is the armature resistance. Plugging in the values, we get:
Eb = 240V - 40A * 0.2Ω
= 240V - 8V
= 232V
Now, we can find the generator current using Ohm's Law:
Ig = (Eb - V) / Rg
Where, Ig is the generator current and Rg is the resistance of the generator. Plugging in the values, we get:
Ig = (232V - 0V) / 99.8Ω
= 232V / 99.8Ω
= 2.326A
Therefore, the generator current is approximately 2.326A.
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