Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 4, Problem 78P
Use PSpice or MultiSim to solve Prob. 4.52.
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Chapter 4 Solutions
Fundamentals of Electric Circuits
Ch. 4.2 - Figure 4.3 For Practice Prob. 4.1. For the circuit...Ch. 4.2 - Figure 4.5 For Practice Prob. 4.2. Assume that Vo...Ch. 4.3 - Figure 4.8 Using the superposition theorem, find...Ch. 4.3 - Figure 4.11 Use superposition to find vx in the...Ch. 4.3 - Find I in the circuit of Fig. 4.14 using the...Ch. 4.4 - Find io in the circuit of Fig. 4.19 using source...Ch. 4.4 - Use source transformation to find ix in the...Ch. 4.5 - Using Thevenins theorem, find the equivalent...Ch. 4.5 - Find the Thevenin equivalent circuit of the...Ch. 4.5 - Obtain the Thevenin equivalent of the circuit in...
Ch. 4.6 - Find the Norton equivalent circuit for the circuit...Ch. 4.6 - Find the Norton equivalent circuit of the circuit...Ch. 4.8 - Determine the value of RL that will draw the...Ch. 4.9 - Rework Practice Prob. 4.9 using PSpice. Find the...Ch. 4.9 - Fin d the maximum power transferred to RL if the...Ch. 4.10 - The measured open-circuit voltage across a certain...Ch. 4.10 - Prob. 17PPCh. 4.10 - Obtain the current through the galvanometer,...Ch. 4 - The current through a branch in a linear network...Ch. 4 - For superposition, it is not required that only...Ch. 4 - The superposition principle applies to power...Ch. 4 - Refer to Fig. 4.67. The Thevenin resistance at...Ch. 4 - The Thevenin voltage across terminals a and b of...Ch. 4 - The Norton current at terminals a and b of the...Ch. 4 - The Norton resistance RN is exactly equal to the...Ch. 4 - Which pair of circuits in Fig. 4.68 are...Ch. 4 - A load is connected to a network. At the terminals...Ch. 4 - The source is supplying the maximum power to the...Ch. 4 - Calculate the current io in the circuit of Fig....Ch. 4 - Using Fig. 4.70, design a problem to help other...Ch. 4 - (a) In the circuit of Fig. 4.71, calculate vo and...Ch. 4 - Use linearity to determine io in the circuit of...Ch. 4 - For the circuit in Fig. 4.73, assume vo = 1 V, and...Ch. 4 - For the linear circuit shown in Fig. 4.74, use...Ch. 4 - Use linearity and the assumption that Vo = 1 V to...Ch. 4 - Using superposition, find Vo in the circuit of...Ch. 4 - Given that I = 6 amps when Vs = 160 volts and Is =...Ch. 4 - Using Fig. 4.78, design a problem to help other...Ch. 4 - Use the superposition principle to find io and vo...Ch. 4 - Determine vo in the circuit of Fig. 4.80 using the...Ch. 4 - Use superposition to find vo in the circuit of...Ch. 4 - Apply the superposition principle to find vo in...Ch. 4 - For the circuit in Fig. 4.83, use superposition to...Ch. 4 - Given the circuit in Fig. 4.84, use superposition...Ch. 4 - Use superposition to obtain vx in the circuit of...Ch. 4 - Use superposition to find Vo in the circuit of...Ch. 4 - Use superposition to solve for vx in the circuit...Ch. 4 - Use source transformation to reduce the circuit...Ch. 4 - Using Fig. 4.89, design a problem to help other...Ch. 4 - For the circuit in Fig, 4.90, use source...Ch. 4 - Referring to Fig. 4.91, use source transformation...Ch. 4 - Use source transformation to find the voltage Vx...Ch. 4 - Obtain vo in the circuit of Fig. 4.93 using source...Ch. 4 - Use source transformation to find io in the...Ch. 4 - Apply source transformation to find vx in the...Ch. 4 - Use source transformation to find Io in Fig. 4.96....Ch. 4 - Use source transformation to find vo in the...Ch. 4 - Use source transformation on the circuit shown in...Ch. 4 - Determine vx in the circuit of Fig. 4.99 using...Ch. 4 - Use source transformation to find ix in the...Ch. 4 - Determine the Thevenin equivalent circuit, shown...Ch. 4 - Using Fig. 4.102, design a problem that will help...Ch. 4 - Use Thevenins theorem to find vo in Prob. 4.12....Ch. 4 - Solve for the current i in the circuit of Fig....Ch. 4 - Find the Norton equivalent with respect to...Ch. 4 - Apply Thevenins theorem to find Vo in the circuit...Ch. 4 - Obtain the Thevenin equivalent at terminals a-b of...Ch. 4 - Find the Thevenin equivalent at terminals a-b of...Ch. 4 - Find the Thevenin and Norton equivalents at...Ch. 4 - For the circuit in Fig. 4.109, find the Thevenin...Ch. 4 - Find the Thevenin equivalent looking into...Ch. 4 - For the circuit in Fig. 4.111, obtain the Thevenin...Ch. 4 - Find the Thevenin equivalent of the circuit in...Ch. 4 - Using Fig. 4.113, design a problem to help other...Ch. 4 - Obtain the Thevenin and Norton equivalent circuits...Ch. 4 - Determine the Norton equivalent at terminals a-b...Ch. 4 - Find the Norton equivalent looking into terminals...Ch. 4 - Obtain the Norton equivalent of the circuit in...Ch. 4 - Given the circuit in Fig. 4.117, obtain the Norton...Ch. 4 - For the transistor model in Fig. 4.118, obtain the...Ch. 4 - Find the Norton equivalent at terminals a-b of the...Ch. 4 - Find the Thevenin equivalent between terminals a-b...Ch. 4 - Obtain the Norton equivalent at terminals a-b of...Ch. 4 - Use Nortons theorem to find Vo in the circuit of...Ch. 4 - Obtain the Thevenin and Norton equivalent circuits...Ch. 4 - The network in Fig. 4.124 models a bipolar...Ch. 4 - Determine the Thevenin and Norton equivalents at...Ch. 4 - For the circuit in Fig. 4.126, find the Thevenin...Ch. 4 - Obtain the Thevenin and Norton equivalent circuits...Ch. 4 - Find the Thevenin equivalent of the circuit in...Ch. 4 - Find the Norton equivalent for the circuit in Fig....Ch. 4 - Obtain the Thevenin equivalent seen at terminals...Ch. 4 - For the circuit shown in Fig. 4.131, determine the...Ch. 4 - Find the maximum power that can be delivered to...Ch. 4 - The variable resistor R in Fig. 4.133 is adjusted...Ch. 4 - Consider the 30- resistor in Fig. 4.134. First...Ch. 4 - Find the maximum power transferred to resistor R...Ch. 4 - Determine the maximum power delivered to the...Ch. 4 - For the circuit in Fig. 4.137, what resistor...Ch. 4 - (a) For the circuit in Fig. 4.138, obtain the...Ch. 4 - Determine the maximum power that can be delivered...Ch. 4 - For the bridge circuit shown in Fig. 4.140, find...Ch. 4 - For the circuit in Fig. 4.141, determine the value...Ch. 4 - Solve Prob. 4.34 using PSpice or MultiSim. Let V =...Ch. 4 - Use PSpice or MultiSim to solve Prob. 4.44. For...Ch. 4 - Use PSpice or MultiSim to solve Prob. 4.52.Ch. 4 - Obtain the Thevenin equivalent of the circuit in...Ch. 4 - Use PSpice or MultiSim to find the Thevenin...Ch. 4 - For the circuit in Fig. 4.126, use PSpice or...Ch. 4 - An automobile battery has an open circuit voltage...Ch. 4 - The following results were obtained from...Ch. 4 - When connected to a 4- resistor, a battery has a...Ch. 4 - The Thevenin equivalent at terminals a-b of the...Ch. 4 - A black box with a circuit in it is connected to a...Ch. 4 - A transducer is modeled with a current source Is...Ch. 4 - Consider the circuit in Fig. 4.144. An ammeter...Ch. 4 - Consider the circuit in Fig. 4.145. (a) Replace...Ch. 4 - The Wheatstone bridge circuit shown in Fig. 4.146...Ch. 4 - (a) In the Wheatstone bridge circuit of Fig. 4.147...Ch. 4 - Consider the bridge circuit of Fig. 4.148. Is the...Ch. 4 - The circuit in Fig. 4.149 models a common-emitter...Ch. 4 - An attenuator is an interface circuit that reduces...Ch. 4 - A dc voltmeter with a sensitivity of 10 k/V is...Ch. 4 - A resistance array is connected to a load resistor...Ch. 4 - A common-emitter amplifier circuit is shown in...Ch. 4 - For Practice Prob. 4.18, determine the current...
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- Find the binary sequence, for the following Differential Manchester code.arrow_forwardQ2- What are the parameters and loss that can be determined during open-circuit test of singlephase transformer. Draw the circuit diagram of open-circuit test and explain how can you calculate the Parameters and loss.arrow_forwardQ6- the open circuit and short circuit tests on a 10 KVA, 125/250 v, 50 Hz single phase transformer gave the following results: O.C. Test: 125 V,0.6 A, 50 W ( on L.V.) S.C. Test: 20 V, 40 A, 177.78 W (on H.V. side) Calculate: i) Copper losses on half load ii) Full load efficiency at 0.8 leading p.f. iii) Half load efficiency at 0.8 leading p.f. iv) Regulation at full load at 0.9 leading p.f. Ans: 44.445 W, 97.23%, 97.69%, -1.8015%arrow_forward
- Q3-A two-winding transformer has a primary winding with 208 turns and a secondary winding with 6 turns. The primary winding is connected to a 4160V system. What is the secondary voltage at no load? What is the current in the primary winding with a 50-amp load connected to the secondary winding? What is the apparent power flowing in the primary and secondary circuits? Ans. 120 V, 1.44 A, 6000 VAarrow_forwardQ12- A three phase transformer 3300/400 V,has D/Y connected and working on 50Hz. The line current on the primary side is 12A and secondary has a balanced load at 0.8 lagging p.f. Determine the i) Secondary phase voltage ii) Line current iii) Output power Ans. (230.95 V, 99.11 A, 54.94 kW)arrow_forwardQ1- A single phase transformer consumes 2 A on no load at p.f. 0.208 lagging. The turns ratio is 2/1 (step down). If the loads on the secondary is 25 A at a p.f. 0.866 lagging. Find the primary current and power factor.arrow_forward
- Q7- A 5 KVA, 500/250 V,50 Hz, single phase transformer gave the following reading: O.C. Test: 250 V,2 A, 50 W (H.V. side open) S.C. Test: 25 V10 A, 60 W (L.V. side shorted) Determine: i) The efficiency on full load, 0.8 lagging p.f. ii) The voltage regulation on full load, 0.8 leading p.f. iii) Draw the equivalent circuit referred to primary and insert all the values it.arrow_forwardQ4- A single phase transformer has 350 primary and secondary 1050 turns. The primary is connected to 400 V,50 Hz a.c. supply. If the net cross sectional area of core is 50 cm2, calculate i) The maximum value of the flux density in the core. ii) The induced e.m.f in the secondary winding. Ans: 1.029 T, 1200Varrow_forwardpower systems engineeringarrow_forward
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