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Q#1 DC Machines GATE EE 2015 NAT +2 marks -0 marks

A DC motor has the following specifications: 10 hp, 37.5A, 230 V; flux/pole = 0.01 Wb, number of poles = 4, number of conductors = 666, number of parallel paths = 2. Armature resistance = 0.267 Ω. The armature reaction is negligible and rotational losses are 600 W. the motor operates from a 230 V DC supply. If the motor runs at 1000 rpm, the output torque produced (in Nm) is ____________.

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