ANALYSIS+DESIGN OF LINEAR CIRCUITS(LL)
8th Edition
ISBN: 9781119235385
Author: Thomas
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1, Problem 1.14P
The 12-V automobile battery in Figure P1-14 has an output capacity of 100 Ah when connected to a head lamp that absorbs 200 W of power. The car engine is not running and therefore not charging the battery. Assume the battery volt-age remains constant.
- Find the current supplied by the battery and determine how long can the battery power the headlight.
- A 100-W device is connected through the utility port. How long can the battery power both the headlight and the device?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Figure P1.27 shows an ammeter (AM) and voltmeter (VM) connected to measure thecurrent and voltage, respectively, for circuit element A. When current actually enters the + terminalof the ammeter, the reading is positive, and when current leaves the + terminalreading is negative. If the actual voltage polarity is positive at the + terminal of the VM, thereading is positive; otherwise, it is negative. (Actually, for the connection shown, the ammeterreads the sum of the current in element A and the very small current taken by the voltmeter. Forpurposes of this problem, assume that the current taken by the voltmeter is negligible.) Find thepower for element A and state whether energy is being delivered to element A or taken from it if a. the ammeter reading is +2 A and the voltmeter reading is +30 V.b. the ammeter reading is -2 A and the voltmeter reading is - 30 V.c. the ammeter reading is -2 A and the voltmeter reading is + 30 V.
Consider the circuit shown in Figure P1.62. Find the current iR flowing through the resistor. Find the power for each element in the circuit. Which elements are absorbing power?
The circuit shown in Figure P1.70 contains a voltage-controlled voltage source. a. Use KVL to write an equation relating the voltages and solve for v x. b. Use Ohm’s law to find the current i x. c. Find the power for each element in the circuit and verify that power is conserved.
Chapter 1 Solutions
ANALYSIS+DESIGN OF LINEAR CIRCUITS(LL)
Ch. 1 - Given an electrical quantity described in terms of...Ch. 1 - Express the following quantities to the nearest...Ch. 1 - An ampere-hour (Ah) meter measures the time...Ch. 1 - Electric power companies measure energy...Ch. 1 - Fill in the blanks in the following statements. To...Ch. 1 - Which of the two entries is larger? 1000...Ch. 1 - A wire carries a constant current of 30A. How many...Ch. 1 - The net positive charge flowing through a device...Ch. 1 - Figure P1-9 shows a plot of the net positive...Ch. 1 - The net negative charge flowing through a device...
Ch. 1 - A cell phone charger outputs 9.6 V and is...Ch. 1 - For 0t5s, the current through a device is...Ch. 1 - The charge flowing through a device is...Ch. 1 - The 12-V automobile battery in Figure P1-14 has an...Ch. 1 - The current through a device is zero for t0 and is...Ch. 1 - A string of holiday lights is protected by a 12A...Ch. 1 - When illuminated the relationship for a photocell...Ch. 1 - A new 6-V alkaline lantern battery delivers...Ch. 1 - The maximum current allowed by a device's power...Ch. 1 - Traffic lights are being converted from...Ch. 1 - Two electrical devices are connected as shown in...Ch. 1 - Figure P1-22 shows an electric circuit with a...Ch. 1 - Figure P1-22 shows an electric circuit with a...Ch. 1 - In Figure P1-24 the voltage v2 is 10 V and v4 is 5...Ch. 1 - For t0, the voltage across and power absorbed by a...Ch. 1 - Repeat Problem 1-22 using MATLAB to perform the...Ch. 1 - Using the passive sign convention, the voltage...Ch. 1 - Power Ratio (PR) in dB A stereo amplifier takes...Ch. 1 - AC to DC Converter A manufacturer's data sheet for...Ch. 1 - Charge-Storage Device A capacitor is a...Ch. 1 - Compute Data Sheet A manufacturer's data sheet for...Ch. 1 - Light Source Comparison A Today people have three...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Find Vo in the network in Fig. P5.4 using linearity and the assumption that Vo=1V.
Basic Engineering Circuit Analysis
The resistance and inductance of the circuit in Fig. 8.5 are 100 and 20 mH, respectively.
Find the value of C t...
Electric Circuits. (11th Edition)
The switch in the circuit shown has been closed for a long time and is opened at t = 0.
Calculate the initial v...
Electric Circuits (10th Edition)
Explain Faradays law and the function of Lenzs law.
Fundamentals of Applied Electromagnetics (7th Edition)
a. Using the superposition theorem, determine the voltage across the 4.7 resistor of Fig. 9.126. b. Find the p...
Introductory Circuit Analysis (13th Edition)
Suppose we have a capacitance C discharging through a resistance R. Define and give an expression for the time ...
Electrical Engineering: Principles & Applications (7th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Use KVL and KCL to solve for the labeled currents and voltages in Figure P1.44. Compute the power for each element and show that power is conserved (i.e., the algebraic sum of the powers is zero).arrow_forwardFor the circuit shown in Figure P1.77, solve for the current i x. What types of sources are present in this circuit?arrow_forwardUse KCL to find the values of i a, i c, and i d for the circuit of Figure P1.37. Which elements are connected in series in this circuit?arrow_forward
- The circuit element shown in Figure P1.9 has v = 12 V and i ba = -2A. What is the value of v baBe sure to give the correct algebraic sign. What is the value of i? Is energy delivered tothe element or taken from it?arrow_forwardThe numerical values for the currents and voltages in the circuit inP1.29 are given in Table P1.29. Find the total power developed inthe circuit.arrow_forwardIn the electrical circuit given in the figure, u(t) voltage is system input and i2(t) current is system output. x1(t)= i1(t) current and x2(t)=uc(t) voltage system states. What is the value of A11 and A21 in the state space model of ?arrow_forward
- The table shows the values for the current, I, in an electric circuit and the resistance, R, of the circuit. Solve; a. Graph the ordered pairs in the given table of values, with values of I along the x-axis and values of R along the y-axis.Connect the eight points with a smooth curve. b. Does current vary directly or inversely as resistance? Use your graph and explain how you arrived at your answer. c. Write an equation of variation for I and R, using one of the ordered pairs in the table to find the constant of variation. Then use your variation equation to verify the other seven ordered pairs in the table.arrow_forwardConsider the circuit shown in Figure P1.36. a. Which elements are in parallel? b. What is the relationship between v a and v b ? c. Given that v a = 2 V and v d = -5 V determine the values of v b and v c.arrow_forwardOhm's law gives the relationship between voltage, resistance, and current in a simple circuit: V = IR. a) Find (dV/dt) in terms of I, R, (dI/dt) and (dR/dt). Assume all quantities are functions of time. b) We have a circuit with 500 Ω resistor, and we ramp up the voltage. How quickly is the current changing when we are increasing the voltage by 10 V/s? It will help to remember that t is the independant variable here. Include units, note that 1Ω = 1V/A. c) Is the current increasing or decreasing? How can you tell? *PLEASE SOLVE ONLY PART B and Carrow_forward
- Solve 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_forwardAnswer the following problems ans show your solutions. A circuit composed of a 24-V battery and four resistors connected in a series connection, whose resistance are 110, 180, 220, and 250, respectively. Find a) total resistance of the system, b) the total current supplied by the battery and c) voltage across each resistor. (Express your answer in at least 2 decimal places) A car has two headlights, and their power is derived from the car’s battery. The filament in one burns out, but the other headlight stays on. Are the headlights connected in series or in parallel? Explain your answer.arrow_forwardFind the values of input and output power. The weight of the car is 800 Kg The weight of each person is 75 Kg You may assume any missing parameters you need in the design appropriately (e.g., the rolling-resistance-power, air-resistance-power, the DC motor's parameters, ....etc)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Lesson 2 - Source Transformations, Part 2 (Engineering Circuits); Author: Math and Science;https://www.youtube.com/watch?v=7gno74RhVGQ;License: Standard Youtube License