3) Switch 1 has been in position “a" and switch 2 has been closed for a long time. Att-0, switch 1 moves from position “a" to position “b" and switch 3 is closed. Then, 100 ms later switch 2 is opened.

Electric Motor Control
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ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter4: Symbols
Section: Chapter Questions
Problem 4SQ: Single-pole and double-pole switch symbols are shown as a. single break. b. double break. c. NO and...
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3)
Switch 1 has been in position “a" and switch 2 has been closed for a long time.
Att-0, switch 1 moves from position “a* to position “b" and switch 3 is closed. Then,
100 ms later switch 2 is opened.
t=100 ms
t=0s
10KO
5KΩ
b 6KQ
5ΚΩ
a
t=0s
+
20V
30ΚΩ
Vc
: 20μF
300ΚΩ
60KO
100 V
a) Find vc(t) for 0<t<100 ms.
b) Find vc(t) for t> 100 ms.
Transcribed Image Text:3) Switch 1 has been in position “a" and switch 2 has been closed for a long time. Att-0, switch 1 moves from position “a* to position “b" and switch 3 is closed. Then, 100 ms later switch 2 is opened. t=100 ms t=0s 10KO 5KΩ b 6KQ 5ΚΩ a t=0s + 20V 30ΚΩ Vc : 20μF 300ΚΩ 60KO 100 V a) Find vc(t) for 0<t<100 ms. b) Find vc(t) for t> 100 ms.
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