Basic Engineering Circuit Analysis
11th Edition
ISBN: 9781118539293
Author: J. David Irwin, R. Mark Nelms
Publisher: WILEY
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Textbook Question
Chapter 1, Problem 20P
Determine the amount of power absorbed or supplied by the element in Fig. P 1.20 if
(a)
(b)
(c)
(d)
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Students have asked these similar questions
The numerical values of the voltages and currents
in the interconnection seen in Fig. P1.27 are given in
Table P1.27. Does the interconnection satisfy the
power check?
Va +
d
Element
Voltage (V)
Current (mA)
+
is
990
-22.5
a
btin
600
-30
+ ve
300
60
Va
a
e
+
d
105
52.5
h
e
-120
30
165
82.5
585
52.5
+ vf -
-585
82.5
1.20.1 For the circuit shown below, if V (40 - V2) V and Vz = 27.7 V, what is the
power (in W) associated with the element with voltage Vo? Passive sign convention
for power must be followed. Please pay attention: the numbers may change since
they are randomized. Your answer must include 1 place after the decimal point.
%=2 A
+ V,
6 A
1A
3A
+ V2
30 V
V.
6At
3A
H.W. 1.1: it is required to maintain a loading of 5 kW in a heating unit. At an initial
temperature of 15 Cº, a voltage of 200 V is necessary for this purpose. When the unit is
settled down to a steady temperature, a voltage of 220 V is required to maintain the same
loading. Estimate the final temperature of the heating element, if the resistance
temperature coefficient of the heating element is 0.0006 per C° at 0 C°.
Chapter 1 Solutions
Basic Engineering Circuit Analysis
Ch. 1 - If the current in an electric conductor is 2.4 A,...Ch. 1 - Determine the time interval required for a 12�A...Ch. 1 - A lightning bolt carrying 30,000 A lasts for 50...Ch. 1 - If a 12-V battery delivers 100 J in 5 s, find (a)...Ch. 1 - The current in a conductor is 1.5 A. How many...Ch. 1 - If 60 C of charge pass through an electric...Ch. 1 - Determine the number of coulombs of charge...Ch. 1 - Five coulombs of charge pass through the element...Ch. 1 - The current that enters an element is shown in...Ch. 1 - The charge entering the positive terminal of an...
Ch. 1 - The charge entering the positive terminal of an...Ch. 1 - Prob. 12PCh. 1 - The power absorbed by the BOX in Fig. Pl. 13 is...Ch. 1 - The power absorbed by the BOX in Fig. Pl. 14 is...Ch. 1 - The energy absorbed by the BOX in Fig. P1.15 is...Ch. 1 - The charge that enters the BOX in Fig. P1.16 is...Ch. 1 - The energy absorbed by the BOX in Fig. Pl. 17 is...Ch. 1 - The charge entering the upper terminal of the BOX...Ch. 1 - The energy absorbed by the BOX in Fig. Pl. 19 is...Ch. 1 - Determine the amount of power absorbed or supplied...Ch. 1 - Calculate the power absorbed by element A in Fig....Ch. 1 - Calculate the power supplied by element A in Fig....Ch. 1 - Element A in the diagram in Fig. PI .23 absorbs 30...Ch. 1 - Element B in the diagram in Fig. P1.24 supplies 60...Ch. 1 - Element B in the diagram in Fig. PI .25 supplies...Ch. 1 - Element B in the diagram in Fig. Pl.26 supplies 72...Ch. 1 - (a) In Fig. Pl.27 (a), P1=36W. Is element 2...Ch. 1 - Two elements are connected in series, as shown in...Ch. 1 - Element 2 in Fig. Pl.29 absorbed 32W. Find the...Ch. 1 - Choose Is such that the power absorbed by element...Ch. 1 - Find the power that is absorbed or supplied by the...Ch. 1 - Find the power that is absorbed or supplied by the...Ch. 1 - Compute the power that is absorbed or supplied by...Ch. 1 - Find the power that is absorbed or supplied by...Ch. 1 - Find Ix in the network in Fig. P1.35.Ch. 1 - Prob. 36PCh. 1 - Find the power absorbed or supplied by element 1...Ch. 1 - Find the power absorbed or supplied by element 3...Ch. 1 - Find the power absorbed or supplied by element 1...Ch. 1 - Find Vx in the network in Fig. P1.40 using...Ch. 1 - Find Ix in the circuit in Fig. P1.41 using...Ch. 1 - Is the source Vs in the network in Fig. P1.42...Ch. 1 - Find I0 in the network in Fig. P1.43 using...Ch. 1 - Calculate the power absorbed by each element in...Ch. 1 - Calculate the power absorbed by each element in...Ch. 1 - In the circuit in Fig. P1.46, element 1 absorbs 40...
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- The voltage and current at the terminals of the circuit element in Fig. 1.5 are shown in Fig. P1.28.Sketch the power versus t plot for 0≤t≤50 s. calculate the energy deliveredarrow_forwardHomework chapter one:- H.W. 1.1: it is required to maintain a loading of 5 kW in a heating unit. At an initial temperature of 15 C°, a voltage of 200 V is necessary for this purpose. When the unit is settled down to a steady temperature, a voltage of 220 V is required to maintain the same loading. Estimate the final temperature of the heating element, if the resistance temperature coefficient of the heating element is 0.0006 per C° at 0 C°. H.W. 1.2: Determine the current flowing at the instant of switching a 60 watt lamp on a 230 V supply. The ambient temperature is 25 C°. The filament temperature is 2000 C° and the resistance temperature coefficient is 0.005 /C° at 0 Co. H.W. 1.3: At 0 C°, a specimen of copper wire has its resistance equal to 4-milliohm and its temperature coefficient of resistance equal to (1/234.5) per Co. Find the values of its resistance and temperature coefficient of resistance at 70 C°. H.W. 1.4: At 0 C°, the resistances and their temperature coefficients of…arrow_forwardDetermine the value of RL for maximum power absorbed, and what is the value of P max at that RL,arrow_forward
- and the voltage Vo. P1.7 For the circuit in Fig. P1.7, find the voltage V₁ using series/parallel resistors and current and voltage division methods. 10 k 5 ΚΩ ww ww 4 k 4 ks) 5 kn V₁5KI 12 mA Fig. P1.7arrow_forwardThe new GE Halidade-X wind turbine can produce up to 17420 horsepower [hp of output power. The turbine is 853 feet [ft] tall and has a diameter of 722 feet [ft). MJ The average home uses 655.2 megajoules home of energy every 7 days [d. The weekly cost to provide energy to an average home is $38.22. Determine the number of homes that a single turbine could power. Determine the cost of energy units of dollars per kilowatt hour kWharrow_forwardomework chapter one:- W. 1.1 it is required to maintain a loading of 5 kW in a heating unit. At an initial temperature of 15 C°, a voltage of 200 V is necessary for this purpose. When the unit is settled down to a steady temperature, a voltage of 220 V is required to maintain the same loading. Estimate the final temperature of the heating element, if the resistance temperature coefficient of the heating element is 0.0006 per C° at 0 Co. Answer: t2 = 368.15 C° H.W. 1.2: Determine the current flowing at the instant of switching a 60 watt lamp on a 230 V supply. The ambient temperature is 25 Co. The filament temperature is 2000 C and the resistance temperature coefficient is 0.005 /C° at 0 C°. Answer: I = 2.548 A H.W.1.3: At 0 C°, a specimen of copper wire has its resistance equal to 4-milliohm and its temperature coefficient of resistance equal to (1/234.5) per Co. Find the values of its resistance and temperature coefficient of resistance at 70 Co. Answer: Rt = 5.194 m2, a70= 0.003284/…arrow_forward
- Question1 plz provide solutionarrow_forwardA power station generate 25 MW wth fuel of 3000 k.calorific/ kwh. The fuel has an calorific value of 8000 k.calorific/kg. The input fuel in kg for one hour is * 9375 kg 6459 kg 5834 kg 8690 kg Non of themarrow_forwardSolve the following Numerical problems a. What is the Output Voltage of a battery that expends 7.2J of energy in moving 1C of charge? b. A 50-ohm load dissipates 200W of power. How much is the voltage and current across the load? c. If one branch of a 120-V power line is protected by a fuse of 20-A. Will the fuse carry 10-Ohm load? d. If total resistance of a series circuit is 280-Ohm. If one of the resistance is 160-Ohm. What is the sum of other two resistances?arrow_forward
- What is the current through the LED? R1 330 n LED1 LED_red V1 6 V 23 mA b. 13 mA С. 18 mA d. O mA a.arrow_forwardIs the source Vs in the network in Fig. P1.42 absorbing or supplying power, and how much? (V1=8 V, i1=1 A, V2=6 V, i3=2 A, V4=3 V) V2 i2 14 V1 i3 V3 V4 i1 Figure P1.42 Notes on entering solution: • Enter your solution in Watts • Enter your solution to the nearest hundredth of a Watt • Do not include units in your answer • ex. 5W is entered as 5.00 • Check your sign (i.e. the problem asks whether it is power absorbed or supplied)arrow_forwardConsider the following data from the Efficiency of Light Bulb. Data for the Efficiency of Light Bulb Mw M₁ V 85.0 g 290.0 g 11.5 V Answer the following questions based on this data. TR 23°C Find the electrical energy delivered to the system (in units of 10³ J). O 2.20 5.31 O 6.90 63 3.67 I 2.10 A 4.98 t₁ Os tr 13.8 s T₁ 12°C T₁ 34°Carrow_forward
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