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How armature resistance effect is shown graphically?

Posted: Thu Jul 14, 2022 1:11 pm
by answerhappygod
a) By adding IaRa product horizontally with Rf line
b) By subtracting IaRa product vertically with Rf line
c) By adding IaRa product vertically with Rf line
d) By subtracting IaRa product horizontally with Rf line