In a d.c. series motor, the torque developed is 20 Nm at 10 A. If the load current is doubled, the new torque will be (a) 60 Nm (c) 80 Nm (b) 45 Nm (d) 100 Nm

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
Section: Chapter Questions
Problem 6RQ: Name three factors that determine the torque produced by an induction motor.
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In a d.c. series motor, the torque developed is 20
Nm at 10 A. If the load current is doubled, the
new torque will be
(a) 60 Nm
(c) 80 Nm
(b) 45 Nm
(d) 100 Nm
Transcribed Image Text:In a d.c. series motor, the torque developed is 20 Nm at 10 A. If the load current is doubled, the new torque will be (a) 60 Nm (c) 80 Nm (b) 45 Nm (d) 100 Nm
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