The magnetic force acting on a charged particle can never do work because at every instant the
Question:
The magnetic force acting on a charged particle can never do work because at every instant the force is perpendicular to the velocity. The torque exerted by a magnetic field can do work on a current loop when the loop rotates. Explain how these seemingly contradictory statements can be reconciled.
Step by Step Answer:
There are two perpendicular motions There is the mo...View the full answer
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Physics questions
-
Figure shows two point charges, q and q'. moving relative to an observer at point P. Suppose that the lower charge is actually negative, with q' = -q. (a) Find the magnetic field (magnitude and...
-
Find the direction of the magnetic field acting on the positively charged particle moving in the various situations shown in figure if the direction of the magnetic force acting on it is asindicated....
-
A positively charged particle of mass 7.2 10-8 kg is traveling due east with a speed of 85 m/s and enters a 0.31-T uniform magnetic field. The particle moves through one-quarter of a circle in a...
-
Why is it so difficult to assess whether a firm is properly valued?
-
If 3.40 105 J of energy is supplied to a container of liquid oxygen at -183 C how much oxygen can evaporate?
-
Gundy Press reports the following information about resources: Required Compute unused setup and clerical resource capacity for GundyPress. Cost Driver Rate Cost Driver Volume Nesources use S 125 per...
-
The Joppa Corporation's sales department receives all sales order (mail or phone), prepares the sales order form, and forwards a copy to the credit manager for credit approval. On indicating...
-
Wu Company's income statement for the year ended December 31, 2011, and its comparative balance sheets as of December 31, 2011 and 2010, are presented on the next page. During 2011, Wu Company...
-
Joint Cost Allocation-Net Realizable Value Method Nature's Garden Inc. produces wood chips, wood pulp, and mulch. These products are produced through harvesting trees and sending the logs through a...
-
a. How (conceptually) is the discount rate for capital budgeting purposes defined and calculated? Is this number appropriate for analyzing the asset-replacement decision at hand? Why or why not? What...
-
Could an accelerator be built in which all the forces on the particles, for steering and for increasing speed, are magnetic forces? Why or why not?
-
When the polarity of the voltage applied to a dc motor is reversed, the direction of motion does not reverse. Why not? How could the direction of motion be reversed?
-
Describe the major phases in the systems development life cycle (SDLC).
-
(a) Briefly compare the arithmetic mean with the geometric mean. Cite some cases where the geometric mean would be preferred. (b) Use data given in Table 4.9 to calculate the arithmetic mean and the...
-
Suppose you are an efficiency expert who is concerned with the absentee rate for workers in a factory. You collect the following information: (a) Calculate the moan and standard deviation for days...
-
What are descriptive statistics? Why are they important? Give some examples of descriptive statistics.
-
Consider the following annual data on profit rates for Cherry Computers, Lemon Motors, and Orange Electronics: (a) Calculate the mean and standard deviation of each companys profits. (b) Compare the...
-
You are given the following information about stock A and stock B: (a) Calculate the mean, standard deviation, and coefficient of variation for each stock. (b) If you could purchase only one stock,...
-
Use Shannons expansion theorem around e and f for the function Y = abcdef + abcde + bcef + abcdef so that it can be implemented using a minimum number of 4-variable functions. Rewrite Y to indicate...
-
Aztec Furnishings makes hand-crafted furniture for sale in its retail stores. The furniture maker has recently installed a new assembly process, including a new sander and polisher. With this new...
-
Does the object represented in FIGURE Q1.4 have a positive or negative value of α x ? Explain. Figure Q1.4
-
Does the object represented in FIGURE Q1.5 have a positive or negative value of α y ? Explain. Figure Q1.5
-
Determine the signs (positive, negative, or zero) of the position, velocity, and acceleration for the particle in FIGURE Q1.6. Figure Q1.6
-
On a particular day, there were 300 stocks that advanced on the NYSE and 800 that declined. The volume in advancing issues was 1000 and the volume in declining issues was 3000. What is the trin ratio?
-
A coupon bond that pays interest of $30 annually has a par value of $1000, matures in 6 years, and is selling today at $850. What is the yield to maturity on this bond?
-
A callable bond pays annual interest of $40, has a par value of $1000, matures in 4 years but is callable in 3 years at a price of $1100, and has a value today of $1020. What is the yield to call on...
Study smarter with the SolutionInn App