A 4-pole DC motor is lap-wound with 400 conductors. The pole shoe is 2 – McqOptions

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1.	A 4-pole DC motor is lap-wound with 400 conductors. The pole shoe is 20 cm long and the average flux density over one-pole pitch is 0.4 T, the armature diameter is 30 cm. When the motor is drawing 25 A and running at 1500 rpm, the torque developed will be nearly
A.	30 Nm
B.	40 Nm
C.	50 Nm
D.	60 Nm
Answer» B. 40 Nm

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