Physics · Electrical Machines
A 4-pole, DC series motor has a wave-connected armature with 200 conductors. The flux per pole is 20 mWb when the motor is drawing 20 A from the supply. If the back EMF of the motor is 200 V, calculate the speed of the motor under this condition.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11450 rpm
- 21374 rpm
- 31500 rpm✓
- 41893 rpm
Correct answer
1500 rpm
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