Answered: Consider a portable electric blanket…

Consider a portable electric blanket that runs on a 4. heating element, how long should the wire be (in unit (Take the resistivity of the copper wire as p = 1.7 × Answer:

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 32R

See similar textbooks

Related questions

Q: A 1,000 – ft length of copper wire (ρ = 10.37 Ω − CM⁄ft) has a resistance of 40.8 ohms. What would…

A: A network problem on finding resistance. Look below the explaination..

Q: A 5m of aluminum wire, whose diameter is 0.7 in., has a resistance of 0.18 Ω at 20°C. What is its…

Q: 1. A 350 in. length of conductor is connected to a source of emf and carries a steady current of 25…

A: Given Length of conductor L=350 inCurrent I=25 ACross-sectional area a=0.0063 sq.inTime =1 day=24…

Q: A kilometer of wire having a diameter of 11.7 mm and a resistance of 0.031 ohm is drawn down so that…

A: The answer is 0.93 Ω The first cross section is (π/4)*(11.7)2 = 107.5sq.mm. The second is:…

Q: Question 9 How many charges pass a fixed point in a 100-watt light bulb in 1 hours if the applied…

Q: what is the resistance

Q: 3. The power consumed by an electric appliance is computed as the square of the voltage across the…

A: Given : The equation of power consumed by an appliance as the square of voltage V2 divided by…

Q: An electric range has a constant current of 5 A entering the positive voltage terminal with a…

A: To solve above problem, we will use Ohm's law and Kirchhoff's law: Ohm's law state that in a current…

Q: An air conditioner of rating 6200 W is utilized for 12 hours. How many units of Electrical Energy is…

A: According to question: The units of electrical energy consumed by the air conditioner is calculated…

Q: Determine the electrical conductivity and conductance of Aluminum cable (L) meter in length and 4 mm…

Q: OWhat factors affect the resistance of conductor? Give one or two proofs from your daily…

A: 1) The formula for resistance of the conductor is R=ρlaρ-resistivityl-Lengtha-area of cross section…

Q: 1. The resistivity of aluminum is 2.8 x 10-8 Qm. How long (in meters) a piece of aluminum wire 1.0…

A: In this question we will find length of wire of aluminum with given resistivity and resistance. ..

Q: aluminum atomic bars conductivity conductor copper electricity gold spans supports insulators made…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: An electric range has a constant current of 1.6 A entering positive voltage terminal with a voltage…

A: In this question we need to find the cost of operating the range for two hours in peso.

Q: You apply a potential difference of 10.55 V between the ends of a wire that is 62.98 m in length and…

Q: Q5/ A- The resistance of the wire used for telephone is 35 2 per km when the weight of the wire is 5…

A: In this question, We need to determine the cross sectional area of the wire. We know resistance R=…

Q: Identify the given statement. The current is defined as the electric charge passing through the area…

Q: It is found that the resistance of a coil of wire increases from 40 ohms at 15 degrees Celsius to 50…

A: Given resistance of coil of wire, R15=40 Ω at 15 degrees celsius R50=50 Ω at 60 degrees celsius

Q: The diameter of 000-gauge copper wire is 10.405 mm. Find the resistance of a 2.5-km length of such…

A: Resistance of a wire - Resistance and wire length have a proportionate connection. A thin wire's…

Q: determine the power dissipated when a curren of 10 mA flows through an appliance having a resistance…

A: Power dissipation = I2RGiven,I = 10mAR = 8KΩ

Q: The resistance of a wire at 0° Celsius is measured to be 182. If the temperature increased to 25°…

Q: A carbon resistor dissipated 60 W of power from a 120 V source at 20°C. How much energy will be…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 6. A length of a copper telephone line has a resistance of 24 ohms at 20°C. What is the resistance…

A: Note: As per our policy we can solve only one question, please re-upload the remaining question as a…

Q: Q1) A. Answer the following question: 1. What is the reciprocal of resistance? 2. An electric heater…

Q: 1. What is the relative increase or decrease in conductivity of a conductor if the area is reduced…

A: Since there are multiple questions uploaded within the same question, thus solving the first part…

Q: Q1: Copper wire is 15 meters long, its cross-section area is 0.5 mm', and its resistance is 0.34…

A: NOTE: as per our guidelines we are supposed to answer?️ only one question. Kindly repost other…

Q: A flashlight has 4 – AA batteries. The combination has a capacity of 200 watt-sec. How long in mins…

A: Given Data:-E=200 watt-secI=10mAV=6Volt

Q: Calculate the power dissipated by the element of an electric fire of resistance 302 when a current…

Q: OWhat factors affect the resistance of conductor? Give one or two proofs from your daily…

Q: The resistance of a wire at 0° Celsius is measured to be 172. If the temperature increased to 27°…

Q: 2. A small island community in the Northern part of our country does not have electricity. However,…

A: Resources of energy Coal for thermal power plant Wind speed for wind energy Kinetic energy of water…

Q: Q2 / 500 Watt electric heater, calculate the amount of electric current and the electrical power…

A: Write the given values. P=500 WVACRMS=220 Vt=2 hrs=7200 s

Q: A 500 W heating coil, designed to operate at 110V, it is made of 0.500mm diameter nichrome wire. a)…

A: Given 500 W heating coil V=110V d=0.5mm , made of nichrome wire

Q: A walkman has 4 –AA batteries. The combination has a capacity of 200 watt-sec. How long will it take…

A: Given, A Walkman has 4- AA batteries. The combination has a capacity (C) = 200 watt-sec…

Q: 1. An electric range has a constant current of 16 A entering the positive voltage terminal with a…

Q: 2. A battery of a flashlight has a rating of 7.4 ampere-hours (Ah) and a lifetime of 15 hours. a.…

A: In this question we will find current , power and energy of given battery.....

Q: The resistance of the wire used for telephone is 35 0 per kilometre when the weight of the wire is 5…

Q: 4) Find the conductance, G, of the following Aluminium conductor, Take T=20°C: Aluminum: 1 = 200 ft…

Q: Answer the following questions briefly. Use illustrations, drawings or pictures to justify your…

A: Use illustrations, drawings to justify your answer. Using Ohm’s Law, what is the relationship of…

Q: 2- A battery supplies a current I to a resistor R with a potential difference E, the percentage…

Q: 8. The resistance of an aluminum wire at 29°C is 20 ohms. Determine its resistance at 100°C. if the…

A: The solution is given below

Q: Required information The charge entering the positive terminal of an element is q = 4 sin(4 T ) mC,…

A: Given data, Charge is q=4sin4πt mC Voltage is v=9cos4πt V Time is t = 0.3 s Expression of current…

Q: 3. Calculate the cross-sectional area, in mm^2, of a piece of copper wire, 40 m length and having a…

Q: A 1000 W Air conditioner is used 5 times a day for 30 minutes each time.How many units of…

A: In this question we need to find a unit consumed by Air conditioner in a month

Q: A wire with a diameter of 0.001 in has an area of how many CM?. Round off your numerical answer, no…

Q: 2. A wire of length 1 m has a resistance of 2 ohms. What is the resistance of second wire, whose…

A: Given there are two wires w1 and w2. For wire 1, R1 = 2 ohm, l1= 1m. Let diameter of wire 1 is d1…

Q: For an electrical component, the formulas for charge and voltage are given below. A is 9 coulombs,…

A: In this question we need to find a power at t=7 sec

Q: For an electrical component, the formulas for charge and voltage are given below. A is 9 coulombs,…

Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 0.5 mm diameter as the
heating element, how long should the wire be (in units of meters) if you want to generate 20 W of heating power?
(Take the resistivity of the copper wire as p = 1.7 × 10-8 2 · m.)
Answer:

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

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

Suppose the cost of an incandescent bulb is 28 cents and that electricity costs 10.5 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.
Compute for the time it takes for an electric stove to consume 60 kJ for a 220-V line drawing 30 A of current.
A 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?
An electric heater having power rated 1000W connected to a 240V supply for 10minutes. a) Determine the heat energy produced of the electric heater. b) Calculate current taken from the supply. c) Find the resistance value of the heater element. d) Calculate the conductance of the heater element. e) Find the nett charge flowing in the heater element. f) Calculate the no. of free electron that represent for that amount charge obtained.
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.hr
An overhead power line travels 10km to supply a factory with 10MW of power (1MW = 1 × 106 W ). If the power line reaches the factory at 60 kV , what radius should it have so that it dissipates 1% of the power delivered (1% of 10MW)? Take the wire to be made out of copper with ρ = 1.68 × 10−8 Ω · m.
A certain appliance requires 225 watts when it is switched on. How much would it cost to run for m minutes, at a cost of d dollars per kilowatt-hour? Express your answer algebraically.
A traditional light bulb has an electrical power of 40 W (round, d = 50 mm). The surface of an incandescent lamp is about 127 °C, while the surrounding air is 27 °C. What percentage of the power is lost through natural convection?
An electric heater having power rated 1000W connected to a 240V supply for 10minutes. a) calculate the conductance of the heater element.b) Find the nett charge flowing in the heater element.c) Calculate the no. of free electron that represent for that amount charge obtained.
1. A group of 5 x 1016 free electrons passed a point in a conductor in 20 s. Find the current flowing. 2. A water heater has a resistance of 5.5 Ω and draws a rated current of 40 A. Find the kWh consumed in a period of one month if the heater is in service on the average of 1.5 hours per day.
A 1500 Watt space heater will draw 12.5 Amps (12.5 A) when plugged into a 120 V line.a) What is the heater’s resistance?b) How much charge passes through the heater in 15 minutes? (Assume direct current,DC)
Electric engineering Anoil fired furnace is heating 10 TPH material. The temperature of material is increased by 50°C to 1300°C. Oil consumption per hour is 650 litres. The specific gravity and net calorific value of fuel oil is 0.92 and 9700 kcal/kg respectively. Find the thermal efficiency of the furnace, if sp. heat of material is 0.13 kcal/kg °C.