Principles and Applications of Electrical Engineering
6th Edition
ISBN: 9780073529592
Author: Giorgio Rizzoni Professor of Mechanical Engineering, James A. Kearns Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2, Problem 2.16HP
Use KVL to find the voltages
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For the circuit shown in Figure P2.43, finda. The equivalent resistance seen by the source.b. The current i.c. The power delivered by the source.d. The voltages v1, v2.e. The minimum power rating required for R1.
The resistance for the network shown in Figure P2.20 between terminals a and b with copen circuited is Rab=50 Ω. Similarly, the resistance between terminals b and c with a open is Rbc=100 Ω,and between c and a with b open is Rca=70 Ω. Now, suppose that a short circuit isconnected from terminal b to terminal c, and determine the resistance between terminal a andthe shorted terminals b–c.
In the circuit shown in Figure P2.34, determine theterminal voltage of the source, the power supplied tothe circuit (or load), and the efficiency of the circuit.Assume that the only loss is due to the internalresistance of the source. Efficiency is defined as the ratio of load power to source power.VS = 12 V RS = 5 k RL = 7 k
Chapter 2 Solutions
Principles and Applications of Electrical Engineering
Ch. 2 - A free electron has an initial potential energy...Ch. 2 - The units for voltage, current, and resistance are...Ch. 2 - A particular fully charged battery can deliver...Ch. 2 - The charge cycle shown in Figure P2.4 is an...Ch. 2 - Batteries (e.g., lead-acid batteries) store...Ch. 2 - What determines: a. The current through an ideal...Ch. 2 - An automotive battery is rated at 120 A-h. This...Ch. 2 - A car battery kept in storage in the basement...Ch. 2 - Suppose the current through a wire is given by the...Ch. 2 - The charge cycle shown in Figure P2.10 is...
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- For the circuit shown in Figure P2.48, find theequivalent resistance seen by the source. How muchpower is delivered by the source?arrow_forwardIn the circuit of Figure P2.36, if v1 = v/4 and thepower delivered by the source is 40 mW, find R, v, v1,and i. Given: R1 = 8 k, R2 = 10 k, R3 = 12 k.arrow_forwardFor the circuit shown in Figure P2.38, finda. The currents i1 and i2.b. The power delivered by the 3-A current source andby the 12-V voltage source.c. The total power dissipated by the circuit.Let R1 = 25 , R2 = 10 , R3 = 5 , R4 = 7 , andexpress i1 and i2 as functions of v. (Hint: Apply KCL at thenode between R1 and R3.)arrow_forward
- For the circuit shown in Figure P2.37, finda. The equivalent resistance seen by the source.b. The current i.c. The power delivered by the source.d. The voltages v1 and v2.e. The minimum power rating required for R1.Given: v = 24 V, R0 = 8 , R1 = 10 , R2 = 2 .arrow_forwardFind the value of current i o in figure P2.35 using WITHOUT USING PSPICE.arrow_forwardIn the circuit of Figure P2.21, determine the powerabsorbed by the resistor R and the power delivered bythe current source.arrow_forward
- Using Kirchoff's voltage law to determine the unknown voltage E2 for the configuration given in the figure below. Given that: - The source E1= 110 VV, - V1= 23.5 V, V2= 18 V, V3= 16.4 V, and V4= 20.5 Varrow_forwardAssuming R0 = 2 , R1 = 1 , R2 = 4/3 , R3 = 6 , and VS = 12 V in the circuit of Figure P2.55, use Kirchhoff’s voltage law and Ohm’s law to finda. ia, ib, and ic.b. The current through each resistance.arrow_forwardFor the circuit shown in Figure P2.49, find the equivalent resistance, where R1 = 5 , R2 = 1 k , R3 = R4 = 100 , R5 = 9.1 and R6 = 1 k .arrow_forward
- Find the voltage v and the currents i1 and i2 for the circuit shown in Figure P2.27.arrow_forwardSolve for the power delivered to the 8-Ω resistance and for the node voltages shown in Figure P2.58.arrow_forwardFind the voltages V1 and V2 for the circuit shown in the figure P2.24 by combining resistances in series and parallel.arrow_forward
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