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29. *The switch for the network in Fig. 11.91 has been closed for about 1 h. It is then opened at the time defined as t=0 s. Fig. 11.91 (1=0 s) E FG_11_091.jpg • 2 ΜΩ ww 000 CUM 5 H Rmeter = 10 MO Problem 29. i-subscript-L flows through L to ground. v-subscript-L is across L and measured by digital voltmeter of ten mega-ohms intemal resistance R-subscript-meter. a. Determine the time required for the current it to drop to 10 A b. Find the voltage up at t = 10 us. c. Calculate ut att = 5T.

29. *The switch for the network in Fig. 11.91 has been closed for about 1 h. It is then opened at the time defined as t=0 s. Fig. 11.91 (1=0 s) E FG_11_091.jpg • 2 ΜΩ ww 000 CUM 5 H Rmeter = 10 MO Problem 29. i-subscript-L flows through L to ground. v-subscript-L is across L and measured by digital voltmeter of ten mega-ohms intemal resistance R-subscript-meter. a. Determine the time required for the current it to drop to 10 A b. Find the voltage up at t = 10 us. c. Calculate ut att = 5T.

Electric Motor Control
Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter3: Magnetic Starters
Section: Chapter Questions
Problem 30SQ
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29. *The switch for the network in Fig. 11.91 has been closed for about 1 h. It is then opened at the time defined as t=0 s. Fig. 11.91 (1=0 s) E FG_11_091.jpg • 2 ΜΩ ww 000 CUM 5 H Rmeter = 10 MO Problem 29. i-subscript-L flows through L to ground. v-subscript-L is across L and measured by digital voltmeter of ten mega-ohms intemal resistance R-subscript-meter. a. Determine the time required for the current it to drop to 10 A b. Find the voltage up at t = 10 us. c. Calculate ut att = 5T.
Transcribed Image Text:29. *The switch for the network in Fig. 11.91 has been closed for about 1 h. It is then opened at the time defined as t=0 s. Fig. 11.91 (1=0 s) E FG_11_091.jpg • 2 ΜΩ ww 000 CUM 5 H Rmeter = 10 MO Problem 29. i-subscript-L flows through L to ground. v-subscript-L is across L and measured by digital voltmeter of ten mega-ohms intemal resistance R-subscript-meter. a. Determine the time required for the current it to drop to 10 A b. Find the voltage up at t = 10 us. c. Calculate ut att = 5T.
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