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c) d) View Answer Answer: a Explanation: At low values of the armature conductor, the increase in the field current is very small to provide IaRa drop. At large armature current,field current increases sharply to compensate for the voltage drop caused by armature reaction. 8. For a given dc generator, the external characteristic is plotted . Without using further plots, how can we obtain internal characteristic? a) By adding the IaRa drop to the plot b) By adding armature reaction c) By reducing IaRa drop d) All of the mentioned View Answer Answer: a http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7c.png http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7c.png http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7c.png http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7d.png http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7d.png http://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-generator-q7d.png
