External characteristics of a DC generator are.... (multiple choice)

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SUMMARY

The discussion centers on the external characteristics of a DC generator, specifically the relationship between magnetic characteristics, armature reaction, and ohmic drop. The participant initially believes that external characteristics equal magnetic characteristics minus armature reaction drop and ohmic drop. However, the correct answer, as per the textbook, is that external characteristics consist of magnetization characteristics plus armature reaction minus ohmic drop. The participant acknowledges the potential for misunderstanding and seeks clarification in preparation for an upcoming exam.

PREREQUISITES
  • Understanding of DC generator operation and characteristics
  • Familiarity with magnetic characteristics in electrical engineering
  • Knowledge of armature reaction and its effects on terminal voltage
  • Basic principles of voltage drops in electrical circuits
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  • Study the principles of DC generator magnetic characteristics
  • Research the effects of armature reaction on terminal voltage in DC generators
  • Learn about ohmic drop and its impact on electrical circuits
  • Review past GATE exam questions related to DC generators
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Electrical engineering students, exam candidates preparing for GATE, and anyone seeking to deepen their understanding of DC generator characteristics and performance analysis.

jaus tail
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Homework Statement


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Homework Equations


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The Attempt at a Solution


I think External char = Magnaetic characteristics - Armature reaction drop - Ohmic drop since we're subtracting these values from voltage.
But book answer is D. Magnetization char + armature reaction - Ohmic drop.
Is book answer wrong or have I goofed up somewhere?

PS: I have an exam next month and so asking so many questions.
 

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I believe your answer is correct. In a dc generator, demagnetizing effect of armature reaction (due to core saturation) reduces terminal voltage.
jaus tail said:
PS: I have an exam next month
Seeing your recent threads, I guess it's GATE 2018??
 
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