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) The switch is opened, so the output voltage increases. What is the time constant that describes ne charging of the capacitor in terms of R and C? O When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the me constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules o both loops and the sum of the currents at the junction above the capacitor in the diagram, and se I=dq/dt. the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and us one can cycle the voltage with a time constant determined by the circuit: this demonstrates ne principle of operation of an electronic timer. 4R 15 V Vout

) The switch is opened, so the output voltage increases. What is the time constant that describes ne charging of the capacitor in terms of R and C? O When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the me constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules o both loops and the sum of the currents at the junction above the capacitor in the diagram, and se I=dq/dt. the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and us one can cycle the voltage with a time constant determined by the circuit: this demonstrates ne principle of operation of an electronic timer. 4R 15 V Vout

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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In the diagram below, the switch S has been closed for a long time. A) What is the output voltage Vout? What is the charge on the capacitor? b) The switch is opened, so the output voltage increases. What is the time constant that describes the charging of the capacitor in terms of R and C? c) When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the time constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules to both loops and the sum of the currents at the junction above the capacitor in the diagram, and use I=dq/dt. If the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and thus one can cycle the voltage with a time constant determined by the circuit: this demonstrates the principle of operation of an electronic timer. 4R S 15 V Vout R
Transcribed Image Text:In the diagram below, the switch S has been closed for a long time. A) What is the output voltage Vout? What is the charge on the capacitor? b) The switch is opened, so the output voltage increases. What is the time constant that describes the charging of the capacitor in terms of R and C? c) When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the time constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules to both loops and the sum of the currents at the junction above the capacitor in the diagram, and use I=dq/dt. If the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and thus one can cycle the voltage with a time constant determined by the circuit: this demonstrates the principle of operation of an electronic timer. 4R S 15 V Vout R
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