A student forgot to mark the x-y axes in his experiments but he just noted down the cause and the effect for each. How will he conclude about the armature characteristic out of the all plotted graphs?

asked Oct 8, 2021 in Electrical Machines by Molly (135k points)

A student forgot to mark the x-y axes in his experiments but he just noted down the cause and the effect for each. How will he conclude about the armature characteristic out of the all plotted graphs?

(a) By marking graph for constant terminal voltage

(b) By marking graph for constant field current

(c) By marking graph for constant armature current

(d) By marking graph for constant speed

I have been asked this question by my school principal while I was bunking the class.

My query is from Operating Characteristics of DC Generators topic in portion DC Generators of Electrical Machines

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A student forgot to mark the x-y axes in his experiments but he just noted down the cause and the effect for each. How will he conclude about the armature characteristic out of the all plotted graphs?

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