Principles And Applications Of Electrical Engineering
6th Edition
ISBN: 9789814577410
Author: RIZZONI
Publisher: Mcgraw-Hill
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Chapter 2, Problem 2.51HP
To determine
The voltage across each resistor.
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For the circuit shown in Figure P2.22:a. Determine which components are absorbing powerand which are delivering power.b. Is conservation of power satisfied? Explain youranswer.
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 .
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.
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...
Ch. 2 - The charging scheme used in Figure P2.11 is...Ch. 2 - The charging scheme used in Figure P2.12 is...Ch. 2 - Use KCL to determine the unknown currents in the...Ch. 2 - Use KCL to find the current i1 and i2 in Figure...Ch. 2 - Use KCL to find the current i1,i2, and i3 in the...Ch. 2 - Use KVL to find the voltages v1,v2, and v3 in...Ch. 2 - Use KCL to determine the current i1,i2,i3, and i4...Ch. 2 - In the circuits of Figure P2.18, the directions...Ch. 2 - Find the power delivered by each source in Figure...Ch. 2 - Determine whether each element in Figure P2.20 is...Ch. 2 - In the circuit of Figure P2.21, determine the...Ch. 2 - For the circuit shown in Figure P2.22: a....Ch. 2 - For the circuit shown in Figure P2.23,...Ch. 2 - For the circuit shown in Figure P2.24, determine...Ch. 2 - For the circuit shown in Figure P2.25, determine...Ch. 2 - Prob. 2.26HPCh. 2 - Prob. 2.27HPCh. 2 - Prob. 2.28HPCh. 2 - Prob. 2.29HPCh. 2 - Prob. 2.30HPCh. 2 - Prob. 2.31HPCh. 2 - In the circuit of Figure P2.32, assume v2=vs/6 and...Ch. 2 - Prob. 2.33HPCh. 2 - An incandescent light bulb rated at 100 W will...Ch. 2 - An incandescent lightbulb rated at 60 W...Ch. 2 - Refer to Figure P2.36, and assume that...Ch. 2 - Refer to Figure P2.37, and assume that...Ch. 2 - Refer to Figure P2.38, and assume...Ch. 2 - Prob. 2.39HPCh. 2 - With no load attached, the voltage at the...Ch. 2 - Prob. 2.41HPCh. 2 - For the circuits of Figure P2.42, determine the...Ch. 2 - At an engineering site, a 1-hp motor is placed...Ch. 2 - Cheap resistors are fabricated by depositing a...Ch. 2 - Prob. 2.45HPCh. 2 - Use KCL and Ohm’s law to determine the current...Ch. 2 - Refer to Figure P2.13. Assume R0=1,R1=2,R2=3,R3=4...Ch. 2 - Apply KCL and Ohm’s law to find the power supplied...Ch. 2 - Refer to Figure P2.49 and assume...Ch. 2 - Refer to Figure P2.49 and assume...Ch. 2 - Prob. 2.51HPCh. 2 - The voltage divider network of Figure P2.52 is...Ch. 2 - Find the equivalent resistance seen by the source...Ch. 2 - Find the equivalent resistance seen by the source...Ch. 2 - In the circuit of Figure P2.55, the power absorbed...Ch. 2 - Find the equivalent resistance between terminals...Ch. 2 - For the circuit shown in Figure P2.57, find the...Ch. 2 - For the circuit shown in Figure P2.58,find the...Ch. 2 - Refer to Figure P2.59. Assume...Ch. 2 - Find the equivalent resistance seen by the source...Ch. 2 - For the circuit shown in Figure P2.61. assume...Ch. 2 - Determine the equivalent resistance of the...Ch. 2 - For the circuit shown in Figure P2.58, assume...Ch. 2 - In the circuit of Figure P2.64, find the...Ch. 2 - Refer to Figure P2.64 and determine the equivalent...Ch. 2 - Find the equivalent resistance seen by the source...Ch. 2 - Determine the voltage vo between nodes A and Bin...Ch. 2 - Refer to Figure P2.68 and assume...Ch. 2 - Prob. 2.69HPCh. 2 - Prob. 2.70HPCh. 2 - Prob. 2.71HPCh. 2 - The circuit of Figure P2.72 is used to measure the...Ch. 2 - Consider the practical ammeter, depicted in Figure...Ch. 2 - Prob. 2.74HPCh. 2 - Prob. 2.75HPCh. 2 - Prob. 2.76HPCh. 2 - A voltmeter is used to determine the voltage...Ch. 2 - Prob. 2.78HPCh. 2 - Figure P2.79 shows an aluminum cantilevered beam...Ch. 2 - Refer to Figure P2.79 but assume that the...
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- Assuming 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_forwardIn 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 karrow_forwardFind the equivalent resistance for the infinite network shown in Figure P2.12(a). Because of its form, this network is called a semi-infinite ladder. [Hint: If another section is added to the ladder as shown in Figure P2.12(b), the equivalent resistance is the same. Thus, working from Figure P2.12(b), we can write an expression for Req in terms of Req.Then, we can solve for Req.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_forwarda)Write the nodal equations and determine the potential values(voltages) of V1,V2 and V3 with respect to the ground b) Determine the current flowing through the resistor R2 c) Calculate the power at the resistor R3 and state either power is absorbed or dissipatedarrow_forwardFor the circuit shown in the figure, determine the magnitude of the currents I2, I3, and I4 passing through batteries 2, 3, and 4, respectively. In each case, determine whether the battery is supplying power or being charged. The batteries and resistors in the circuit are assumed to be ideal and have the given propertiesarrow_forward
- For 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_forwardFor the circuit shown, determine the equivalent voltage source in Volts where I1=8 A, I2=2 A, R1=12 Ω, and R2=28 Ω. (i.e. What voltage source should be in series with the a resister to create an equivalent circuit?)arrow_forwarda. How many essential nodes are there in the circuit shown in Figure 1? b. Using the defined nodes and reference node shown for the circuit in Figure 1, what is the valid node-voltage expression for node 1. c. Using the defined nodes and reference node shown for the circuit in Figure 1, what is the valid node-voltage expression for node 2. d. For the circuit shown in figure 1, how much power is the 20 ohm resistor absorbing?arrow_forward
- Find voltage VR1 in the circuit below given that the voltage source 20 Volts, the resistances R1=100Ω and R2=300Ω connected in series.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_forwardFor the circuit shown in Figure P2.48, find theequivalent resistance seen by the source. How muchpower is delivered by the source?arrow_forward
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