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 1, Problem 19P
Find I and the power absorbed by each element in the network of Fig. 1.30.
Figure 1.30
For Prob. 1.19.
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Example 1.1. A lead acid battery fitted in a truck develops 24V and has an internal
resistance of 0.019. It is used to supply current to head lights etc. If the total load is
equal to 100 watts, find:
(i) voltage drop in internal resistance
(ii) terminal voltage
For the element in the figure below, V₁ = 17 V.
What is v₂ in volts (V)?
V
Ohm's law describes the relation of voltage difference and current passing across an element.
Select one:
True
False
Chapter 1 Solutions
Fundamentals of Electric Circuits
Ch. 1.3 - Calculate the amount of charge represented by...Ch. 1.3 - Prob. 2PPCh. 1.3 - The current flowing through an element is i= 4A...Ch. 1.5 - To move charge q from point b to point a requires...Ch. 1.5 - Find the power delivered to the element in Example...Ch. 1.5 - A home electric heater draws 10 A when connected...Ch. 1.6 - Figure 1.16 For Practice Prob. 1.7 Compute the...Ch. 1.7 - If an electron beam in a TV picture tube carries...Ch. 1.7 - Referring to the residential rate schedule in...Ch. 1 - One millivolt is one millionth of a volt. (a) True...
Ch. 1 - The prefix micro stands for: (a) 106 (b) 103 (c)...Ch. 1 - The voltage 2.000,000 V can be expressed in powers...Ch. 1 - A charge of 2 C flowing past a given point each...Ch. 1 - The unit of current is: (a) coulomb (b) ampere (c)...Ch. 1 - Voltage is measured in: (a) watts (b) amperes (c)...Ch. 1 - Prob. 7RQCh. 1 - The voltage across a 1.1-kW toaster that produces...Ch. 1 - Which of these is not an electrical quantity? (a)...Ch. 1 - The dependent source in Fig. 1.22 is: (a)...Ch. 1 - How much charge is represented by these number of...Ch. 1 - Determine the current flowing through an element...Ch. 1 - Find the charge q(t) flowing through a device if...Ch. 1 - A total charge of 300 C flows past a given cross...Ch. 1 - Prob. 5PCh. 1 - The charge entering a certain element is shown in...Ch. 1 - The charge flowing in a wire is plotted in Fig....Ch. 1 - Prob. 8PCh. 1 - The current through an element is shown in (a) t =...Ch. 1 - A lightning bolt with 10 kA strikes an object for...Ch. 1 - A rechargeable flashlight battery is capable of...Ch. 1 - The charge entering the positive terminal of an...Ch. 1 - The voltage v(t) across a device and the current...Ch. 1 - The current entering the positive terminal of a...Ch. 1 - Prob. 16PCh. 1 - Figure 1.28 shows a circuit with four elements, p1...Ch. 1 - Find the power absorbed by each of the elements in...Ch. 1 - Find I and the power absorbed by each element in...Ch. 1 - Find Vo and the power absorbed by each element in...Ch. 1 - A 60-W incandescent bulb operates at 120 V. How...Ch. 1 - Prob. 22PCh. 1 - A 1.8-kW electric heater takes 15 min to boil a...Ch. 1 - A utility company charges 8.2 cents/kWh. If a...Ch. 1 - A 1.2-kW toaster takes roughly 4 minutes to heat...Ch. 1 - A cell phone battery is rated at 3.85 V and can...Ch. 1 - A constant current of 3 A for 4 hours is required...Ch. 1 - A 150-W incandescent outdoor lamp is connected to...Ch. 1 - An electric stove with four burners and an oven is...Ch. 1 - Reliant Energy (the electric company in Houston,...Ch. 1 - In a household, a business is run for an average...Ch. 1 - A telephone wire has a current of 20 A flowing...Ch. 1 - A lightning bolt carried a current of 2 kA and...Ch. 1 - Figure 1.32 shows the power consumption of a...Ch. 1 - The graph in Fig. 1.33 represents the power drawn...Ch. 1 - A battery can be rated in ampere-hours (Ah) or...Ch. 1 - A total of 2 MJ are delivered to an automobile...Ch. 1 - How much energy does a 10-hp motor deliver in 30...Ch. 1 - A 600-W TV receiver is turned on for 4 h with...
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- i1. Find VAB for the given circuit below in Figure 1c. +20 V S100 150 40 200 A B Figure learrow_forwardK, =. = HpEox K , 2Tox In the problems below, use the following definitions: 27arrow_forwardWhich of the following are true?i. Ohm’s law utilizes resistance, current, and voltage.ii. Ohm’s law was named after the mathematician and physicist George Sian Ohm.iii. Ohm’s law is the most powerful mathematical tool used in the study of electricity.iv. Ohm’s law is useful in analyzing circuits. What is the appropriate question for the following:i. to decrease the resistance of electrolysisii. to increase the resistance of alloysiii. to increase the resistance of pure metalsarrow_forward
- Figure 1.25 shows a circuit with five elements. If pi = -205 W, p2 = 60 W, p4 = 45 W, p5 = 30 W, calculate the power p3 received or delivered by element 3. 4 3 5 Figure 1.25 For Prob. 1.14.arrow_forwardApply the E-shift operation to the resistive network shown in Figure 1.79 and calculate the value of the voltage Vs across resistor Rs. + Vs R, 2.50 R2 R, A 30 62 E, 18V R, 120 Figure 1.79 Resistive network with a batteryarrow_forwardOhm's law describes the relation of energy and power dissipated by an element. Select one: True Falsearrow_forward
- Determine the current, voltage and power dissipated by each of the 6 resisters in the following circuit:arrow_forwardYou wish to draw maximum power from a car battery that has 12V across its terminals when nothing is attached to it. You attach a 10 ohm load to the battery and measure 10.9W of power dissipated in the load resistance. What is the maximum power you could possibly dissipate in a load attached to the battery? (in Watts)arrow_forward1.4 Preliminary Work 1. Calculate the voltages and currents for Figure 1.6. When R=4.7kN, Rpot b. When R=4.7kN, Rpot = 1 kN find voltage values of v', v and current value of i. When R=4.7kN, Rpot = 10 kN find voltage values of v', v and current value of i. а. = O N find voltage values of v', v and current value of i. С. 12 V R. Figure 1.6. Diagram of the circuit in Part 4.arrow_forward
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