Write down an expression for the magnetic electromotive force E generated in a straight conductor of lengthI moving with velocity v in the magnetic field B. Please use "*" for products (e.g. B*A), "/" for ratios (e.g. B/A) and the usual "+" and "-" signs as appropriate. Please use the "Display response" button to check you entered the answer you expect. E =

Write down an expression for the magnetic electromotive force E generated in a straight conductor of lengthI moving with velocity v in the magnetic field B. Please use "" for products (e.g. BA), "/" for ratios (e.g. B/A) and the usual "+" and "-" signs as appropriate. Please use the "Display response" button to check you entered the answer you expect. E =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Magnetic and electric field lines are in many ways similar, with few crucial differences. Which of the properties listed below does NOT apply to both fields? O All of these properties apply to both E and B field lines. The density of lines is proportional to the field strength in that area. Field lines never intersect. Tangent to the line at a point gives you the direction of the field as that point. O Field lines form closed loops.
e. Draw the Amperian loop that will allow you to find the magnetic field at a point P inside the cylinder (r < b). f. Write the integral B ds = $ B cos o ds in terms of the unknown B and the givens 7 and/or b. Your answer should look familiar. g. i. What is the current Ithru going through your Amperian loop? Hint: the current is spread out evenly over the cross-sectional area of the wire so set up a ratio of areas. Check that your expression for Ithrough has the dimensions of current. h. Use (f) and (g) to determine the magnetic field for r
A 6.70 - partice moves through a region of space where an lectric field of magnitude 1250 N/C points in the positive direction, and a magnetic field of magnitude 1.22 T points in the Positive direction Part A the net force acting on the particle is 621x10-N in the positive x direction, find the components of the particle's velocity. Assume the particle's velocity is in the x-y plane Enter your answers numerically separated by commas. Vx, Vy, Vz= ? m/s Submit Request Answer
An infinitely long, straight, cylindrical wire of radius R has a uniform current density J = Jî in cylindrical coordinates. What is the magnitude of the magnetic field at some point inside the wire at a distance r; < R from the wire's central Cross-sectional view axis? Express your answer in terms of R, r;, µo, and J. J B = Side view Assuming J is positive, what is the direction of the magnetic field at some point inside the wire? O positive z-direction negative z-direction positive r-direction negative r-direction positive p-direction negative p-direction
In the figure below, point P is at a perpendicular distance a = 13 cm from one end of a straight wire of length L = 15 cm carrying current I = 6 A. (Note that the wire is not long, or infinite.) What are the magnitude and direction of the magnetic field at P? For direction, you can say into or out of the page.
Let x=0 be the beginning of the magnetic field. Express the area (A), and express vw in terms of the area. Then what is vBw in terms of magnetic flux? The magnetic force on the conducting charges is an EMF, an electromotive force. Use these to derive the following expression for the EMF: Please see attachments for details on question and diagram.
Write down an expression for the magnetic electromotive force E generated in a straight conductor of length I moving with velocity U in the magnetic field B. Please use "*" for products (e.g. B*A), "/" for ratios (e.g. B/A) and the usual "+" and "-" signs as appropriate. Please use the "Display response" button to check you entered the answer you expect.
What is the magnetic field at P due to the current I in the wire shown? Give your answer in terms of given variables (a, b, and I) and physical and numerical constants (uo and T and/or ke and c). a Hint Magnetic field points Select an answer v and has magnitude · (Format hint: Spell out Greek letters and use underscore ("_") for subscripts. For example, to type in lo, type in "mu_0".)
Determine the direction of the vector U, B, or F that is missing from the pair of vectors shown in each scenario. Here, u is the velocity vector of a moving positive charge, B is a constant and uniform magnetic field, and F is the resulting force on the moving charge. 1. 4. OB F ta V F O 2. 5. B TE ↑> V F Answer Bank - 3. 6. F OV TE F Į
Determine the direction of the magnetic field lines produced by the following current-carrying straight conductors. Provide a brief explanation of your answer. (Which RHR was used, etc...) Determine the direction of conventional current flow in the following diagrams where magnetic field lines are indicated by an arrow, a dot, or an "x" depending on their direction. Provide a justification for your choice. C Solution: 00000 Determine the direction of the magnetic field produced by the current flowing in the following solenoids, by labelling the magnetic poles in the correct locations. Be sure to note subtle changes in the direction of the coil windings and the cell orientation. Provide a justification for your choice. S Solution: N Solution: Determine the orientation of the battery cell in the following solenoids such that the current produces the magnetic field shown. Provide a justification for your choice. Solution: C Solution: Z S Solution: ✓ Solution: Solution:
Jumper cables used to start a stalled vehicle often carry a 65-AA current. How strong is the magnetic field 5.5 cmcm from one cable? Express your answer to two significant figures and include the appropriate units. BB = 2.4×10−4 T Correct Part B Compare to the Earth's magnetic field (5.0××10−5−5 TT). Express your answer using two significant figures.
The circuit diagram shows three resistors connected to a battery. The resistances are R1 = 1.0 ko, R2 = 2.0 kQ, and R3 = 3.0 kQ. Which of the statements below best describes the situation? R, R The potential difference across R2 is smaller than that across R3 The current through R2 is greater than that through R3 All three resistors carry the same current. All three resistors have the same potential difference. OR1 carries the smallest current. The current through R3 is greater than that through R1 2.