Answer / raj

VL means inductive load voltage.
VC means Capacitive load voltage.

Answer / ankit shukla

because VL is leading by 90 degree to VC

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

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