A copper wire of length (ell=1.0 mathrm{~km}) and radius (r=) (1.2 mathrm{~mm}) carries current (I=20 mathrm{~A}). At

Question:

A copper wire of length $\ell=1.0 \mathrm{~km}$ and radius $r=$ $1.2 \mathrm{~mm}$ carries current $I=20 \mathrm{~A}$. At what rate is energy lost from the wire? Why do long electrical transmission lines usually work with "high voltage"?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Principles And Practice Of Physics

ISBN: 9780135610862

2nd Edition

Authors: Eric Mazur

See More Books

Question Posted: Apr 16, 2024 02:00 AM

See More Questions

Figure shows a resistor of resistance R = 6.00? connected to an ideal battery of emf ? = 12.0V by means of two copper wires. Each wire has length 20.0 cm and radius 1.00 mm. In dealing with such...
What is the maximum load that could be suspended from a copper wire of length 1.0 m and radius 1.0 mm without permanently deforming the wire? Copper has an elastic limit of 2.0 108 Pa and a tensile...
What is the maximum load that could be suspended from a copper wire of length 1.0 m and radius 1.0 mm without breaking the wire? Copper has an elastic limit of 2.0 108 Pa and a tensile strength of...
An amplifier has three cascaded stages of amplification, each having available power gain of 10 dB and noise figure of 3 dB. i) ii) Calculate the noise factor (ratio), and noise figure (dB). If the...
The article cited in Exercise 49 of Chapter 7 gave summary information on a regression in which the dependent variable was power output (W) in a simulated 200-m race and the predictors were x1 = arm...
In Problems 524, graph each equation of the system. Then solve the system to find the points of intersection. x + y = 4 y = x - 9
How does purpose-driven marketing for Secret deodorant relate to the hierarchy of needs concept detailed in Chapter 5?
Hamilton Corp. is a reinsurance and financial services company. Hamilton strongly believes in evaluating the performance of its standalone divisions using financial metrics such as ROI and residual...
Mr. Carter is the manager of Simmons Farm and Seed Company, a wholesaler of fertilizer, seed, and other farm supplies. The company has been successful in recent years primarily because of great...
In Figure P31.88, in which resistor is energy dissipated $(a)$ at the greatest rate and $(b)$ at the smallest rate? Data from Figure P31.88 20 www 10 5.0 20 90 10 90
If the rate at which energy is dissipated by resistor 1 in Figure P31.86 is $0.75 \mathrm{~W}$, and $R_{1}=12 \Omega, \mathscr{E}_{1}=4.5 \mathrm{~V}$, and $\mathscr{E}_{2}=8.0 \mathrm{~V}$ (a)...
Assume you were a member of the panel that presided over the academic misconduct hearing involving Zane Corbin. Given just the information provided in the case, how would you have voted at the...
The equation for the standard normal curve (the normal curve with mean 0 and standard deviation 1) graphs as an exponential curve. Graph this curve, whose equation is \[y=\frac{e^{-x^{2} /...
Design an undirected network with N=7 and L=12. Based on how you drew your network, classify it as either fully connected ,random, or scale-free. Justify your decision with a short paragraph response.
Use the Ch08_AviaCo database shown in Figure P8.35 to work Problems 3546. Modify the MODEL table to add the attribute and insert the values shown in the following table. Table P8.35 Attribute and...
The Tip Calculator app does not need a Button to perform its calculations. Reimplement this app to use property listeners to perform the calculations whenever the user modifies the bill amount or...
A particle, carrying a positive charge of $4 \mathrm{nC}$, located at $(5 \mathrm{~cm}, 0)$ on the $x$-axis experiences an attractive force of magnitude 115.2 $\mathrm{N}$ due to an unknown...
How do social policies on retirement differ in various countries around the world?
Orange juice producers are dismayed and puzzled. An economist told them that the reason the demand for orange juice fell is that a new technology allow tomato producers to pick ripe tomatoes more...
Nitin is paid a base salary of $200 per week and commission at the rate of 3% for sales over $5000, 4% if his sales are over $8000, and 5% if sales are over $15,000. How much will Nitin earn in a...
Safa is paid a base salary of $1500 per month and a commission of 6% on all sales over $75,000. Last month, Safa's gross salary was $4440. What were her sales for the month? a$149,000 b$124,000...
Your regular hourly rate of pay is $15.86, and you are paid double time for all work on weekends and for any time over forty hours per week (Monday to Friday). Calculate your gross earnings for a...

A copper wire of length (ell=1.0 mathrm{~km}) and radius (r=) (1.2 mathrm{~mm}) carries current (I=20 mathrm{~A}). At

Question:

Step by Step Answer:

Principles And Practice Of Physics

Students also viewed these Physics questions