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A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

February 7, 2022
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A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

Q. A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A. The armature resistance is 0.5 Ω and leakage inductance is 0.01 H. When loaded, the armature current is 15 A. Then the speed in rpm is.

A.            881 RPM

B.            780 RPM

C.            1000 RPM

D.            1200 RPM

Answer: 881 RPM

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