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A DC Motor is driving a constant load torque having armature resistance of 0.15 Ω and armature current of 0.25 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be
25
24
62
72
72
Quick Summary: Practice and solve "A DC Motor is driving a constant load torque having armature resistance of 0.15 Ω and armature curre..." for Electrical - Electric Drives. The correct answer is Option D: 72. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(d) **