Mathematics · Electrical Machines
A DC series motor is driving a load for which the torque varies proportionally to the square of the speed. If the motor draws a line current of 10 A at 200 rpm, what will be the line current when the speed increases to 400 rpm? (Assume magnetic circuit is unsaturated and brush contact drop is neglected)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120.00 A✓
- 210.14 A
- 320.00 A
- 415.50 A
Correct answer
20.00 A
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