Q2- The armature resistance of a separately excited d-c generator is 0.25 2. If the machine is connected to a constant voltage bus bar of 400 V, find the reduction in the speed when the load delivered...

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Extracted text: Q2- The armature resistance of a separately excited d-c generator is 0.25 2. If the machine is connected to a constant voltage bus bar of 400 V, find the reduction in the speed when the load delivered by it decreases from 50 kw to 25 kw.