A series DC motor has a resistance of 7 Q between its terminals. The motor runs at 1,259 rpm at 230 V taking a current of 12 A. What will be the speed at which the motor runs when it is connected in series with a 4 2 resistance, if there is no change in the supply voltage and current. Give your answer to two decimal places.

A series DC motor has a resistance of 7 Q between its terminals. The motor runs at 1,259 rpm at 230 V taking a current of 12 A. What will be the speed at which the motor runs when it is connected in series with a 4 2 resistance, if there is no change in the supply voltage and current. Give your answer to two decimal places.

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter8: Electricity And Magnetism

Section: Chapter Questions

Problem 14MC: A transformer with more windings on the primary coil than on the secondary coil does which of the...

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