Principles And Applications Of Electrical Engineering
6th Edition
ISBN: 9789814577410
Author: RIZZONI
Publisher: Mcgraw-Hill
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Textbook Question
Chapter 2, Problem 2.64HP
In the circuit of Figure P2.64, find the equivalent resistance between terminals a andb if terminals c andd are open and again if terminals c and d are shorted together. Also, find the equivalent resistance between terminals c and d if terminals a and b are open and again if terminals a and b are shorted together.
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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?
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.
For the circuit shown in Figure P2.33, determinethe power absorbed by the 5- resistor.
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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- For the circuit shown in Figure P2.35, determinethe power absorbed by the variable resistor R, rangingfrom 0 to 20 . Plot the power absorption as afunction of R.arrow_forwardConsider NiMH hobbyist batteries shown in thecircuit of Figure P2.40.a. If V1 = 12.0 V, R1 = 0.15 and RL = 2.55 ,find the load current IL and the power dissipated bythe load.b. If we connect a second battery in parallel withbattery 1 that has voltage V2 = 12 V and R2 = 0.28 , will the load current IL increase ordecrease?Will the power dissipated by the loadincrease or decrease? By how much?arrow_forwardIn the circuit of Figure P2.21, determine the powerabsorbed by the resistor R and the power delivered bythe current source.arrow_forward
- In the circuit of Figure P2.19, the power absorbed by the 15-Ω resistor is 15 W. Find R.arrow_forwardIn the circuits of Figure P2.18, the directions ofcurrent and polarities of voltage have already beendefined. Find the actual values of the indicated currentsand voltages.arrow_forwardFind the equivalent resistance seen by the sourceand the current i in the circuit of Figure P2.45.arrow_forward
- Find the value of current i o in figure P2.35 using WITHOUT USING PSPICE.arrow_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_forwardFind the maximum power that can be delivered to a resistive load by the circuit shown in Figure P2.80. For what value of load resistance is the power maximum?arrow_forward
- 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 karrow_forwardIn the circuit of Figure P2.46, the power absorbedby the 15- resistor is 15W. Find R.arrow_forwardp2q8arrow_forward
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