Lines Definition and 1000 Threads

Do the electric lines of force necessarily depict the trajectory of a charged particle? Or do they depict the trajectory at all.

Homework Statement Find all invariant lines, of the form y=mx for the matrix transformation. a) \left( \begin{array}{cc} 5 & 15 \\ -2 & 8 \end{array} \right) b) \left( \begin{array}{cc} 3 & -5 \\ -4 & 2 \end{array} \right) The Attempt at a Solution \left(...

Homework Statement find in the form y= mx+c, the invariant lines of the tranformation with matrix \left( \begin{array}{cc} 0 & 1 \\ 1 & 0 \end{array} \right) \left( \begin{array}{cc} 0 & 1 \\ 1 & 0 \end{array} \right)\left( \begin{array}{c} x \\ \text{mx}+c...

There are certain properties of lines of force, I know they are not real, but following these 'properties', given position and intensity of magnetic/electric field sources we will be able to reconstruct these lines without any practicals. So I have a problem with lines of forces. Sources...

I am doing a power distribution project, and i have come across power distribution panels, some of which are High Tension and some of which are Low Tension. I have assumed that the power lines that carry a lot of current are the ones that contribute to high tension and the compliment being...

Hi guys this problem should be simple enough but I just can't get the correct answer. Well the question is: Show that the shortest distance between the line (l_1) with equation \frac{x+4}{3} = \frac{y-3}{2} = \frac{z+6}{5} and the line (l_2) with equations i. x -2y -z =0 ii. x...

Sources say if lines are parallel they will repel else try and merge which I don't agree and even see practically. Suppose we have 2 opposite charges facing each other, the lines are parallel, they should repel. Similarly if 2 equal charges are facing each other, the direction of the lines...

Hi. I was thinking about magnetism, and remembered the classic experiment to show magnets working. Basically, you put a magnet under a piece of paper, and drop iron filings on the paper. The filings all line up along lines that curve between the poles. My question is, what are those lines? The...

hey How can i do that? Can anyone of you help me?greets button MATHEMATICA

I've never found any conclusive evidence suggesting that it does. Have there been any independant studies conducted?

Homework Statement Hi guys, I was helping a friend in grade 12 with his Linear Algebra, when I got stumped on some questions I wasn't quite to sure of. I forgot some of my old linear algebra so I need you guys to help me out:) Here's the question: 1)The two line with equations L1: r =...

Edit: My question is better expressed in my next post so ignore this post. Homework Statement A power station delivers 890 kW of power at 12 kV to a factory through wires with total resistance 5.0 \Omega How much less power is wasted if the electricity is delivered at 50 kV rather than 12 kV...

discuss how to find the umbilic points of an ellipsoid and their connection to lines of curvature.

i'm a newbie to quantum theory so bear with me please :) when hydrogen is heated in a vaccuum, the electron gets excited and moves to a higher energy level right? and then emits light as a spectral line when it moves back down to the lower energy level. my question is, why does it only show up...

who can help me with this: on an ellipsoid most points are not umbilic, but there are some special places that are. Discuss how to find these points and their connection to lines of curvature.

Hi we connect a Voltage to heads of a conductive wire how will be the field lines inside Wire ? (cylinder wire) E = \rho J so ? :D field lines are parrarell inside wire ? in whole wire Electrical field is constant ? (J must be more in center of wire) what about Extreme...

How can people get internet access through their power lines? Wouldn't all the transformers act as low pass filters and destroy your carrier signal? Also, with things being turned on and off constently, wouldn't it be too noisy?

Considering the visual representation of an electric/magnetic field (by 'line of forces'), is this fact about the properties of lines of force true? - "Each line of force has equal strength" The websites/books are pretty timid in reviling the properties of lines of forces...at least for E.Fs.

Homework Statement "Using the conversion factor from eV (electron volts) to Joules, determine which energy line for an electron dropping from one energy level to another in the energy diagram for hydrogen above would show a line at 435 nm in an emission spectrum." Homework Equations...

Homework Statement What determines the shape and spacing of equipotential lines?Homework Equations NoneThe Attempt at a Solution I think the fact that equipotential lines have to be perpendicular to the surface determine the shape of the lines. I'm not sure what determines the spacing. Is it...

shortest distance between lines... how to find the shortest distance and the equation between the lines (x-6)/3=(y-7)/-1=(z-4)/1 & (x)/-3=(y+9)/2=(z-2)/4 ... pls help by solving it

Hi, I am currently doing a practice test for my final exam coming up, I am wondering anyone can double check the questions to see if i did them write, below is a picture of the questions, the answers i got are listed at the bottom, If you could, please post whether you agree with my answers...

My understanding is that the capacitance of a typical transmission line will increase proportionally to it's length. So in the case of a simple passive LPF circuit, consisting of just the LPF and the transmission line to the load (of infinite impedance), this would in turn mean the cut-off...

Homework Statement 1. Find the distance betwwen the parallel palnes: a) x + y + 2z = 4 and 2x + 2y + 4z +11 = 0 b) ax + by + cz + d1 = 0 and ax + by + cz + d2 = 0 2.Find the equations of the two planes which are parallel to 2x - y + 2z = 5 and 2 unit from it Homework Equations...

A diffraction grating is labelled 300 lines mm^-1 (lines per mm) Show that the spacing (d) between the lines on the grating is 3.3 x 10^-6m i can't really think of any relevant equations. but I'm assuming standard form. i can't believe that the answer would be as simple as converting to...

A hypothetical atom has five energy levels. How many emission lines will it produce?

Why is it that two power lines carrying anti parallel currents exert force away from each other as oppose to to each other?

Homework Statement Line 1: x-3/3k+1=Y+6/2=Z+3/2K Line 2: x+7/3=y+8/-2k=z+9/-3 Homework Equations Cross product and dot product The Attempt at a Solution vector equation for line 1: (x,y,z)=(4,-4,-3)+k(3,0,2) vector equation for line 2: (x,y,z)=(-4,-8,-12)+k(0,-2,0) The...

Homework Statement find the angular separation between the red hydrogen-alpha spectral line at 656nm and the yellow sodium line at 589nm if the two are observed in third order with a 3500-line/cm grating spectrometer. Homework Equations maximum equation for multi-slit interference d...

Can they exist ?? Like Magnetic Field lines and Electric Field lines

Homework Statement Have graph of dependent variable x and independent variable y. The graph contains 6 linear lines representing 6 discrete constants z. I'm looking for one equation that would represent all 6 of the linear lines... Homework Equations The Attempt at a Solution

I know that \int_{S}^{}\int_{}^{}\vec{B}\cdot d\vec{A} = 0 because \textbf {div} \vec{B}=0 IE, because \Phi_{B} leaving a closed surface must equal \Phi_{B} entering. Yet how is it then that \int_{C}^{}\vec{B}\cdot d\vec{l} isn't also equal to zero? Shouldn't it be true for any...

This is what a book says - “The number of lines per unit area through a surface perpendicular to the lines is proportional to the magnitude of the electric field in that region. Thus, the field lines are close together where the electric field is strong and far apart where...

Is it possible for magnetic field lines to be broken?

Homework Statement [/b] My book talks about find the two tangent lines at the point (0,2) for http://mathbin.net/equations/7402_0.png and http://mathbin.net/equations/7402_1.png .[/URL] It says that t then is equal to pi/2 and -pi/2. I do not know how to they solved for this t. Any help?

I have a question. For example there are three forces of diff magnitudes and are in three diff directions (not oppo directions) acting on a body. if the lines of action of the 3 forces pass through a common point, why the net torque abt that pt is zero? Can someone help me pls? Thanks!

Homework Statement A wire carrying 15 A of current has a length of 17 cm in a magnetic field of 0.80 T. The force on a current-carrying wire in a uniform magnetic field can be found using the equation F = BIL sin θ. Find the force on the wire for each of the following angles between the wire...

Homework Statement F = (x^2 / y) i + y j + k a) Use parametric equations to determine the equation for the flow line for the function F which passes thru the point (1,1,0) b) Show that the flow line also passes thru the point (e,e,1)Homework Equations F = F1 i + F2 j + F3 k dx/F1 = dy/F2 =...

1. The problem statement, all variables and givenknown data Let r be a position vector from the origin (r=xi+yj+zk), whose magnitude is r, and let f(r) be a scalar function of r. Sketch the field lines of f(r)r Homework Equations 1 \nablax(\nabla\Psi)=0 2...

Homework Statement (i) Explain why it would not be possible to write the magnetic Field (B-field) in terms of a vector potential (A) IF magnetic monopoles existed. (ii) For an electrostatic field (E-field), define the electrostatic potential (Fi), and explain CONCISELY what is meant by a...

Homework Statement r(t) = sin t (i) + cos t (j) + t k Find the equation of the line tangent to r(t) at the point (0,1,0) If you plug in 0 into to for r(t), you get (0,1,0). Thus t must equal o. To find the vector of r' (t) or the derivative of r(t) this equals = < cos t, -...

Could someone explain to me what is the "reduced mass" effect on the recombination lines? My teacher told me that would explain why the wavelength I calculated seems a little bit off with the experimental result. I don't seems to find the information anywhere...Thank you in advance.

Homework Statement A power station delivers 890 kW of power at 12 kV to a factory through wires with total resistance 5.0 \Omega. How much less power is wasted if the electricity is delivered at 50 kV rather than 12 kV? Homework Equations eq-1) P = IV eq-2) P = I2R Ohm's Law...

I know there are many ways to identify the spectra but, what are the advantages and disadvantages of using the first and second order lines to identify spectra? Please Help! If u don't want give me answer then suggest me some links. Thanks

Homework Statement A) Find all points on the graph of f(x)=x^2 with tangent lines passing through the point (5,0). B) Show that no line tangent to g(x)=1/x passes through the origin. These are problems from a lab problem solving assignment. Homework Equations y=mx+b f`(x) =...

Homework Statement http://img294.imageshack.us/img294/3157/lines.gif Two long parallel wires are separated by 0.2 meters and carry currents of 3 and 5 amps as shown in the figure. What can we say about the force on wire #2? There is no force on wire #2 The force on wire #2 is towards...

Homework Statement the directions are: compute the volume of the solid formed by revolving the given region about the line region bounded by y=2x, y=2 and x=0 about (a) the y-axis; (b) x=1 Homework Equations V=∫A(x)dx,a,b The Attempt at a Solution From what my...

Find the equations for a line that is perpendicular to both of the following lines x/3 = y/2 = z/2 x/5 = y/3 = (z-4)/2 --- cross product: <3,2,2> x <5,3,2> = <-2,4,-1> then the line is (x-a)/2 = (b-y)/4 = (z-c)/1 but the answer is supposed to be (1/2)x - (52/7) = (-1/4)y +...

Homework Statement Hey I'm supposed to draw electric fields for this problem and I can't figure these 2 out. Homework Equations There really isn't any. The Attempt at a Solution It's included in the picture http://img135.imageshack.us/my.php?image=physicsge1.jpg

Homework Statement A multisection transmission line consists of three lossless transmission lines used to connect an ideal step source of 5V amplitude and 6\Omega output impedance to two separate load resistances of 66\Omega each. All three lines are characterized by the line parameters L =...