Principles and Applications of Electrical Engineering
6th Edition
ISBN: 9780073529592
Author: Giorgio Rizzoni Professor of Mechanical Engineering, James A. Kearns Dr.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 2, Problem 2.33HP
To determine
(a)
The resistance of the filament.
To determine
(b)
The efficiency of the bulb.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A factory space 33 m x 13 m is to be illuminated with an average illumination of 72 lux by 200 W lamps. CU = 0.40, MF = 0.71. If the lumen output of a 200 W is 2,730 lumens, calculate the number of lamps required. Show detailed solution. No solution. No points.
A 33kv, 3phase, 50hz underground line, 3.4km long, uses three single core cables. Each cable has a core diameter of 2.5cm and the radial thickness of insulation is 0.6cm. the relative permittivity of the dielectric is 3.1. Find (i) maximum stress and (ii) total charging kVAR
Renewable Energy Systems Homework 2
One type of PV module consists of 72 cells and the size of each cell is 0.125 m x 0.125 m. Theelectricity conversion efficiency of the module under standard test conditions is 14%. Estimate thepower output of one module and the number of modules required to generate 3 kW power at 962W/m2 insolation and 60oC cell temperature, assuming that the temperature coefficient of themodule power is 0.5%/oC.
I'm preparing for the exam. Solutions required
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...
Knowledge Booster
Similar questions
- Calculate the percentage efficiency of a solar PV module whose length is 127 cm and width is 105 cm and produces 227 W maximum power when exposed to 1158 W/m2 solar irradiance?arrow_forwarda) A 380V, 7.5kW electric water pump of power factor 0.8 lagging and efficiency of 85% will be wired by an armoured XLPE insulated copper cable. The circuit will be run on cable tray with three other similar circuits at an ambient temperature of 40℃. MCCB will be used as the overcurrent protective device for the circuit. The estimated length of the circuit for the machine is 50m. i) Determine the minimum rating of MCCB for the circuit, available MCCB rating are 25A, 30A, 40A, 50A ii) Determine the minimum cable size of the circuit if the allowable voltage drop of the circuit is 1.5% of the nominal supply voltage?arrow_forwardA mobile phone battery has a capacity of 10 Ah. If the mobile phone requires 10 mW power to run smoothly, estimate how long will the phone run without charging? Assume the battery is fully charged.arrow_forward
- A family of three is considering to install solar water heater system. Each person needs 50 liters of water per day. They require a hot water with temperature of 50 °C from using tap water as a source with a typical temperature of 20 °C. Calculate the required heat energy to satisfy the family demand in a year, and calculate the required area of flat plate collector (its efficiency 40% with energy gain 540 kWh.m-2/ year) and evacuated tube collector (its efficiency 60% with energy gain 800 kWh.m-2/ year) that needs to be installed. Describe your answer.arrow_forwardA natural waterfalls, 50 meters high, constantly discharges 1.3m3 per second. A minihydroelectric plant is to be constructed at the bottom of the waterfalls. Calculate theelectric generator kW rating, assuming 90% mechanical to electrical conversion efficiencyand water turbine design efficiency of 70%.arrow_forwardIf the dark saturation current of a solar cell is 1.7X10-8 A/m2, the cell temperature is 27 oC, and the short-circuit current density is 250 A/m2, Vmax = 0.526 V, calculate the maximum power, Pmax; and maximum efficiency, ηmax. when the available solar radiation is 820 W/m2arrow_forward
- Solve the following problems below. Show complete solution. 1. A CFL or compact fluorescent lamp uses less energy that its equivalent incandescentbulb. How much will a person save of he uses a 30 W CFL instead of 100 W incandescentlamp for 7 hr in 30 days? Electricity is priced at 9.55 php / kW.hrarrow_forwardFor a home, you planned to install a solar photovoltaic system. While measuring, you got the peak electrical load as 15kW and you decided to meet the all load by solar photovoltaic system during peak sun shine hours and life time of the system is 20 years. Consider the peak shine hours as 6 hours for that location with the solar intensity of 1000W/m2. (1) Calculate the total PV power generation from the system for its entire lifetime. (2) Calculate the loss in PV power generation if the solar intensity is reduced to 800W/m2 and 500W/m2 for 3 years.arrow_forwardA PV system is using 80 W, 12 V panels and 6 V, 155 Ah batteries in an area of unshaded sunshine. The battery efficiency is 73% and the depth of discharge is 70%. If, in wintertime, there are 5 hours of daylight, estimate the number of PV panels and batteries required for a 24 V application with a load of 2600 Wh /day and three days of storage.arrow_forward
- It is required to produce an illumination of 100 lux in a factory hall 30 m by 15 m. Assume that the maintenance factor is 0.8, coefficient of utilization is 0.4 and efficiency of lamp is 14 lm/W. Suggest the suitable rating, the number of lamps and their possible arrangement. The sizes of the lamps available are 100, 250, 400 and 500 W. [40 lamps of 250 W in 5 rows]arrow_forwardA 500 W heating coil, designed to operate at 110V, it is made of 0.500mm diameter nichrome wire. a) If the resistivity of nichrome remains constant at 20.0 ° C, determine the length of the wire used. b) What will be the power given to the coil from part (a) when heated to 1200 ° C? c) If the electric company charges B/0.16 per kW-h, how much you will have to pay to keep the heating coil working at this temperature for 45 minutes?arrow_forwardIt is required to provide an illumination of 100 lux in a factory hall 30 m by 15 m. Assume CU = 0.40 and MF = 0.80. If 250 W lamps having an efficiency of 14 lumens per watt are used, determine the total wattage required. Show detailed solution. No solution. No points.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,