A 20-hp, 110 V DC shunt motor has an efficiency of 88% an exciting current of 4

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A 20-hp, 110 V DC shunt motor has an efficiency of 88% an exciting current of 4 amperes, and an armature resistance of 0.04 ohm. What starting resistance is required for full-load torque?

A). 0.98 ohm
B). 0.94 ohm
C). 0.95 ohm
D). 0.69 ohm

Related Book For answer-question

Engineering Economy

ISBN: 978-0132554909

15th edition

Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling

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Posted Date: Jan 18, 2021 01:10 PM

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A 20-hp, 110 V DC shunt motor has an efficiency of 88% an exciting current of 4

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Engineering Economy

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