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15-03-2024
Physics

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A separately excited DC motor has an armature resistance of 0.5Ω. Under rated load conditions, the machine draws 60A of armature current (i₂ ), runs at 1000 RPM, and has a back emf of 110V. What is the armature voltage drop (Vₐ)?
A) 50V
B) 55V
C) 60V
D) 65V

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