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Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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ElectricalElectric Drives
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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

A

0.25

B

1.24

C

0.62

D

0.72

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