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7.23 The switch in the circuit in Fig. P7.23 has been in the left position for a long time. At t = 0 it moves to the right position and stays there. a) Write the expression for the capacitor voltage, v(t), for t > 0. b) Write the expression for the current through the 40 kN resistor, i(t), for t > 0*. Figure P7.23 5 kΩ 40 k2 t = 0 + 120 V 10 kΩ 160 nF 25 kN 10 kM

7.23 The switch in the circuit in Fig. P7.23 has been in the left position for a long time. At t = 0 it moves to the right position and stays there. a) Write the expression for the capacitor voltage, v(t), for t > 0. b) Write the expression for the current through the 40 kN resistor, i(t), for t > 0*. Figure P7.23 5 kΩ 40 k2 t = 0 + 120 V 10 kΩ 160 nF 25 kN 10 kM

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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7.23 The switch in the circuit in Fig. P7.23 has been in the left position for a long time. At t right position and stays there. O it moves to the a) Write the expression for the capacitor voltage, v(t), for t > 0. b) Write the expression for the current through the 40 kN resistor, i(t), for t > 0*. Figure P7.23 5 ΚΩ 40 kΩ t = 0 120 V 10 kΩ 160 nF {25 k ξ10 kΩ 7.44 The switch in the circuit in Fig. P7.44 has been open a long time before closing at t = 0. Find i,(t) PSPICE MULTISIM for t > 0. Figure P7.44 40 mH 20 Ω 40 N i,(t) + Vý t = 0 50 Ωξ >0.1v 310 N {15 N 1 )10 A 140 V
Transcribed Image Text:7.23 The switch in the circuit in Fig. P7.23 has been in the left position for a long time. At t right position and stays there. O it moves to the a) Write the expression for the capacitor voltage, v(t), for t > 0. b) Write the expression for the current through the 40 kN resistor, i(t), for t > 0*. Figure P7.23 5 ΚΩ 40 kΩ t = 0 120 V 10 kΩ 160 nF {25 k ξ10 kΩ 7.44 The switch in the circuit in Fig. P7.44 has been open a long time before closing at t = 0. Find i,(t) PSPICE MULTISIM for t > 0. Figure P7.44 40 mH 20 Ω 40 N i,(t) + Vý t = 0 50 Ωξ >0.1v 310 N {15 N 1 )10 A 140 V
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