17. For the network of Fig. 12.74: a. Determine the mathematical expressions for the cur- rent iz and the voltage V when the switch is closed. b. Repeat part (a) if the switch is opened after a period of five time constants has passed. c. Sketch the waveforms of parts (a) and (b) on the same set of axes. R1 10 kf 20 V R10 kn 10 mH V FIG. 12.74

17. For the network of Fig. 12.74: a. Determine the mathematical expressions for the cur- rent iz and the voltage V when the switch is closed. b. Repeat part (a) if the switch is opened after a period of five time constants has passed. c. Sketch the waveforms of parts (a) and (b) on the same set of axes. R1 10 kf 20 V R10 kn 10 mH V FIG. 12.74

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 30SQ

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