The armature resistance of a permanent magnet dc motor is 0 8 2 At no load, the motor draws 1 5 A from a supply voltage of 25 V and runs at 1500 rpm The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3 5 A from the same source will be (A) 48 0 (C) 59 2 (B) 5...

The armature resistance of a permanent magnet dc motor is 0.8 2. At no load, the...

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Electric Machinery

ISBN: 978-0071230100

6th Edition

Authors: Charles Kingsley, Jr, Stephen D. Umans

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The armature resistance of a permanent magnet dc motor is 0.8 2. At no load, the...

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