![A 4 pole, 250 V, DC series motor has a wave-connected armature with 200 conductors. The flux per pole is 25 mWb when the motor is drawing 60 A from the supply. The armature resistance is 0.15 Ω while the series field winding resistance is 0.2 Ω. Calculate the speed under this condition](https://www.gkseries.com/blog/wp-content/uploads/2022/02/A-4-pole-250-V-DC-series-motor-has-a-wave-connected-armature-with-200-conductors.-The-flux-per-pole-is-25-mWb-when-the-motor-is-drawing-60-A-from-the-supply.-The-armature-resistance-is-0.15-Ω.png)
Q. A 4 pole, 250 V, DC series motor has a wave-connected armature with 200 conductors. The flux per pole is 25 mWb when the motor is drawing 60 A from the supply. The armature resistance is 0.15 Ω while the series field winding resistance is 0.2 Ω. Calculate the speed under this condition.
A. 1500 RPM
B. 1470 RPM
C. 1300 RPM
D. 1374 RPM
Answer: 1374 RPM