Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Question
A DC motor is initially at rest and is then connected to a 12V battery. The motor has a
resistance of 2 Ohms and an inductance of 0.5 Henrys. The motor has a torque constant of
0.1 Nm/A and a back EMF constant of 0.1 V/(rad/s). Determine the current through the
motor as a function of time, and the time it takes for the motor to reach 90% of its final
steady-state speed.
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