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(d) Compute the current from a to b through a 40 “load" resistor connected to the terminals. (e) What value of the load resistance should you avoid? Why? (f) Compute the power delivered by a 12V source connected to the terminals, + at a.

(d) Compute the current from a to b through a 40 “load" resistor connected to the terminals. (e) What value of the load resistance should you avoid? Why? (f) Compute the power delivered by a 12V source connected to the terminals, + at a.

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
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Hello, I am looking for help regarding parts D-F, as stated below the current is assumed clockwise, please show all work for understanding, thank you :)

Consider the following circuit: V a 202 10V Vx 152 1A b Find the Thevenin equivalent circuit as seen at terminals a-b, as follows. (a) Write a nodal equation at V when the terminals are left open, and solve for V. Compute currents and check V using KCL. What is the open-circuit voltage V, between a and b? (b) Write a nodal equation at V when the terminals are shorted, and solve for V. Compute currents and check V using KCL. What is the short-circuit current I between a and b? sc (c) Compute R, = Vo/l, and draw the Thevenin equivalent circuit with V + on top (closer to node a) and – on the bottom (closer to node b). (d) Compute the current from a to b through a 40 "load" resistor connected to the terminals. (e) What value of the load resistance should you avoid? Why? (f) Compute the power delivered by a 12V source connected to the terminals, + at a. Show your work and verify. NOTES and SUGGESTIONS When there is a dependent source, as here, the value of Rh is not restricted, so you should not make any assumptions about it. Use a voltage divider to compute V, as a function of V. Keep in mind that the 202 resistor in series with the 1A source does not affect the voltage V, so it should not be included in either of your nodal equations. Choose different variable names for the two values of V in order to avoid confusion. For parts (d) through (f), assume that the current is "clockwise", i.e., from a to b, and work symbolically using Vh and Rh. That is, don't let yourself be distracted by the signs. You may use MATLAB or Python to calculate values, but you must include your script and output as PDF files for full credit. There must also be a "hand calculation" showing where your equations came from. The hand calculation should agree with your script.
Transcribed Image Text:Consider the following circuit: V a 202 10V Vx 152 1A b Find the Thevenin equivalent circuit as seen at terminals a-b, as follows. (a) Write a nodal equation at V when the terminals are left open, and solve for V. Compute currents and check V using KCL. What is the open-circuit voltage V, between a and b? (b) Write a nodal equation at V when the terminals are shorted, and solve for V. Compute currents and check V using KCL. What is the short-circuit current I between a and b? sc (c) Compute R, = Vo/l, and draw the Thevenin equivalent circuit with V + on top (closer to node a) and – on the bottom (closer to node b). (d) Compute the current from a to b through a 40 "load" resistor connected to the terminals. (e) What value of the load resistance should you avoid? Why? (f) Compute the power delivered by a 12V source connected to the terminals, + at a. Show your work and verify. NOTES and SUGGESTIONS When there is a dependent source, as here, the value of Rh is not restricted, so you should not make any assumptions about it. Use a voltage divider to compute V, as a function of V. Keep in mind that the 202 resistor in series with the 1A source does not affect the voltage V, so it should not be included in either of your nodal equations. Choose different variable names for the two values of V in order to avoid confusion. For parts (d) through (f), assume that the current is "clockwise", i.e., from a to b, and work symbolically using Vh and Rh. That is, don't let yourself be distracted by the signs. You may use MATLAB or Python to calculate values, but you must include your script and output as PDF files for full credit. There must also be a "hand calculation" showing where your equations came from. The hand calculation should agree with your script.
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