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A separately excited DC generator has a motor constant K' = 7.2, armature resistance of 0.42 Omega and flux per pole of 0.05 Wb.

A separately excited DC generator has a motor constant K' = 7.2, armature resistance of 0.42 Omega and flux 

A separately excited DC generator has a motor constant K' = 7.2, armature resistance of 0.42 \Omega and flux per pole of 0.05 Wb. The no-load terminal voltage is 50 V. If a load of 1.58 \Omega is connected to the terminals of this generator: Find the new terminal voltage. Find the rotation speed required to regulate the terminal voltage to 50 V.

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