Plates Definition and 591 Threads

Homework Statement Hi This is a problem from problem book by russian author, Igor Irodov. Four large metal plates are located at a small distance d from one another as shown in the figure. The extreme plates are connected by a metal wire, while the potential difference V is applied to...

I Have an object with a mass of 30,000 lb falling at a height of 90ft. The object is to be stopped by a series of diaphragms spaced out 6" apart. I am using 1" welded plates as diaphrams. I need to find out how many plates it takes to stop the object. I have calculated my potential...

Hi All, I'm familiar with the theory of how the soil can represented by means of FEM and how soil-structure interaction is being established. Most of books are pointing out at the Winkler -springs implemented mostly for beams and quadrilaterals (4 node) FEM elements. There are obviously...

In regards to measuring two photons in the 45/135 basis using 22.5 wave plates and PBS orientated in the H/V basis: Is it with the entanglement |H>|V> - |V>|H>, with the wave plates: H -> 45 V -> 135 so |45>|135> - |135>|45> And back again using a PBS: |H>|V> - |V>|H> So getting |H>...

Homework Statement Suppose there are 2 mettalic plates 1(left)&2(right). Left plate is grounded and right plate is given surface charge density sigma. Now since potential of left plate is 0, so there is no potential difference difference between infinity and plate and since field has to be...

Homework Statement A 10 gram pith ball having a charge of 1μC is electrostatically attracted to one of the inside surfaces of a large parallel plate capacitor by an electric field between the plates. The plates are vertically oriented so that the electric field between the plates is...

Hello everyone, I'm very new to microbiology and does not have any background knowledge, so I have some simple questions on identifying different bacteria on agar plates. I have some questions and I have answered them the way I think. Please correct me where nessecary. 1. First of all...

Homework Statement In the figure, a uniform, upward-pointing electric field E of magnitude 4.50×10^3 N/C has been set up between two horizontal plates by charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation d = 2.00 cm. Electrons...

Plz help-Numerical based on 3 parallel plates -Find the charge problem Q} Three identical metal plates with large surface areas are kept parallel to each other.The leftmost plate is given a charge Q and the rightmost plate a charge -Q and the middle one remains neutral.Find the charge appearing...

Working along step-by-step with a text and I'm stumped as to how they reached a conclusion. In the first picture you see two plates aligned at an unspecified angle, theta. One plate is at a potential V and the other is grounded. The distance between the plates at one end is d, and at the other...

Our professor gave us a lecture about sensors tonight, but I'm kind of confused about the principals of capacitive touch screen. As the attached figure shows, when finger touches the screen , capacitance is formed between finger and the ITO bars, but is it true for all the ITO bars? It's...

i'm reposting this question as nobody answered it previously. please answer it this time. in given type of arrangement we normally take it equivalent to two capacitors(plate 1 and surface 2) and (surface 2 and plate 3) in series. My question is that a capacitor is formed with two plates of...

What is the moment of inertia of a rectangular plate making an angle except right angle or multiple of right angle with it's axis which is passing through the centroid of the plate?

Homework Statement Two parallel plates are separated by 10.0cm and a potential difference of 500.0V is maintained between them. What is the force on an electron between the plates? Homework Equations The Attempt at a Solution E = F / q = kQ / r2 V = kQ / r = Er = Fr / q F = Vq /...

Homework Statement Two capacitors are identical, except that one is empty and the other is filled with a dielectric (k=3.6). The empty capacitor is connected to a -11V battery. What must be the potential difference across the plates of the capacitor filled with a dielectric so that it stores...

Homework Statement Two flat charged plates create a uniform electric field (E). What happens to voltage (V) when the distance (d) is doubled? Homework Equations Voltage in uniform electric field: V = E*d Capacitance equations: V = Q/C C = K * A/d The Attempt at a Solution...

Homework Statement In an oscilloscope, an electron is accelerated from rest through a voltage of 1.14x103 V. It then passes through deflecting plates 2.00 cm apart, across which there is a voltage of 412 V. Its velocity when it enters the plates is perpendicular to the electric field of the...

Hey, how would I start solving the total radiation transmitted through one plate, an air gap then another plate (double glazing) as well as the total convective heat transfer across the two plates? Thanks!

A proton, mass 1.67 x 10^-27 kg , is projected horizontally midway between two parallel plates that are separated by 0.8 cm , with an electrical field with magnitude 7.2 x 10^5 N/C between the plates. If the plates are 4.70cm long, find the minimum speed of the proton that just misses the lower...

Electric field magnitude between capacitor plates independent of distance? [SOLVED] The electric field of a point charge Q is defined as E=\frac{F}{q}=\frac{\frac{1}{4\pi \varepsilon _{0}}\frac{Qq}{r^{2}}}{q}=\frac{1}{4\pi \varepsilon _{0}}\frac{Q}{r^{2}} where q is the test charge. The...

Why is it that the field magnitude between two plates in a parallel plate capacitor is given by q/(εA)? In my book it is stated that one plate is of charge +q and the other -q. But if each plate is charged, wouldn't you need to account for the electric field produced by both places making...

The problem is attached, stuck on part d. Homework Statement Im given a problem with two horizontal and parallel plates 8cm long 3cm away from each other. An electron is moving through them with a velocity V_{0}. It is also given that the voltage across the plates is 20 Volts and the...

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Homework Statement I have attached the problem with a diagram. Homework Equations flux = EA = Qencl/εo The Attempt at a Solution I am confused about how I can find the charge densities on each surface. What I think is that the 5C will spread to both surfaces of plate one so...

Homework Statement I was looking at http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elesht.html (scroll down a little on the link) Homework Equations The Attempt at a Solution Would it be correct to say that the decay in the electric field between the plates is...

Homework Statement A moving proton has 6.4x10^-16 J of kinetic energy. The proton is accelerated by a potential difference of 5000 V between parallel plates. http://members.shaw.ca/barry-barclay/Self-Tests/test09/elecst17.gif The proton emerges from the parallel plates with what...

If we produce a three-pair of entangled photons, and send two of them towards polarising beam splitters, and one towards a vertically aligned wave plate - according to QM we need to describe the photon as being in a superposition of V and H when they hit the beam splitters, but when the photon...

An electron, initially at rest, is accelerated through a potential difference of 600 V between two parallel plates. The plate on the bottom is @ 0 V. The top plate is 600 V. And the distance between the two is 4.2 x 10^-2 m. Calculate the kinetic energy gained. Alright, so initially I was...

Dear Experts Does anyone know how big can we extend the gap between the 2 plates? Thanks. Regards Ramone

Homework Statement http://img716.imageshack.us/img716/7692/picture8sj.png Homework Equations ΔEp=QV Ek=0.5mv2The Attempt at a Solution I'm making sure I understand what's going on here. Please bare with me. ΔEp = Ek .5mv2 = Q(1200+V) Solving for V, I get -642V. In a nutshell, is this what...

Homework Statement Electrons are accelerated from REST by a potential difference of 1.0 x 10^3 volts They pass midway between two flat parallel plates 0.15m long and 0.030m apart. The electric field between the plates has a magnitude of 2.0 x 10^3 N/C. Determine how far an electron will be...

So for just vacuum in between one could say F=q*E = (σA)*(σ/2ε0) = A*σ^2 / (2ε0) Alternatively, F = dU/dx, where x is the separation. U = 1/2 CV^2 = 1/2 QV = x*A*σ^2 / (2ε0). To get V, we just add up pieces of E-field*distance. But now let's say part of x is a dielectric of thickness t...

I know that I should do my homework, but I lost all my notes because of the flood brought by "Sendong" a storm in the Philippines. I just need the equations to be used to solve the problem that was given to us. So here it is: A parallel plate capacitor has a capacitance of 7MF when filled...

Okay guys, I have a question and I am sure the answer is stupidly obvious but I can't seem to find a equation explaining it. I want to know the max possible voltage of the capacitor based on the distance between the plates, the Area of the plates, and the resistance of the material between the...

Homework Statement The bent plate has a mass of 70kg per square meter of surface area and revolves about the z-axis at the rate w=30rad/sec. Determine the angular momentum H of the plate about the z-axis. (Neglect the mass of the hub and the thickness of the plate)...

Homework Statement Two parallel sheets of conducting metal are very close to each other (A>>d), they have charges of Q1 and Q2 on them. What is the force between these two plates? Homework Equations Gauss' Law The Attempt at a Solution From what I understand, you can use Gauss'...

Hi. I am working on a project for the design of a capacitive sensor. In order to do that, I am required to compute capacitance using a simulation software like COMSOL. As I want to compare my simulation results with the theoretical results, I would like to know the formula to be used for the...

Two infinite plates are in the (x,y,z) space. one in X=5 and the second in X=-5. they are charged with superficial density SIGMA. Between them there is a spatial density P. P=A*X^2(X is the variable and A is constant. out the space(for example=X=10 or x=-10) the Electric field is 0. I have to...

Has anyone every tried to make an inductor made out of capacitors, that is to say, which uses the magnetic field of displacement current rather than that of electron current to generate magnetic fields? Let's say the gap between plates is greater than the thickness of each plate. Wouldn't most...

I don't understand why the electric field intensity is uniform between parallel plates. No explanation in my textbook... Surely as a charge moves up/down between the plates, parallel to the lines of the field, the electric force that it experiences would change (using Coulomb's law)?

Homework Statement A TE_10 mode is propagating in a rectangular waveguide along the z-axis. If the waveguide is terminated with a perfectly conducting metal plate normal to the z-axis, then 100% of the electromagnetic radiation propagating in the guide will be reflected by the metal plate...

Potential between two angled plates? I have a problem involving two angled plates Diagram http://imageshack.us/photo/my-images/841/paintzr.jpg/ L=10cm d=1mm \phi= 1° Where I'm supposed to find the potential at any point between the plates. I recognize that I'm supposed to use the...

Homework Statement Four parallel metal plates P1, P2, P3, and P4, each of area 7.50 cm2, are separated successively by a distance d = 1.06 mm, as shown in the figure below. P1 is connected to the negative terminal of a battery, and P2 to the positive terminal. The battery maintains a potential...

I want to calculate/preparing a spread sheet for large deflection of simple supported plates. I search for too many documents but all of them for small deflection d≤ t\2 (d deflection, t thickness of sheet). I found a website http://www.xcalcs.com/cgi-bin/tutti/x3calcs.cgi?d=i_4_2_1_0_0&l=en but...

Homework Statement I'm having trouble understanding charges on Earthed plates I think. I know the answer for this question is that the ball will be attracted to the high voltage plate and stay there but I do not know why is that. Homework Equations A light metal ball is suspended between...

Let's say I build a parallel plate capacitor using two metal plates with perfectly smooth surfaces. They are separated by some small distance d, with only vacuum between them. I then apply some AC voltage across the plates. Is there some effect which causes loss in the capacitor (equivalent...

I have seen this explained but would appreciate comments as to whether I understand it correctly. #1. A vertically polarized photon hits a 1/2 wave plate set at 90 degrees will not pass through since cos(90)^2 = 0 #2. 50% of vertically polarized photons that hit a 1/2 wave plate set at...

1. I took two glass plates with a thin film of water trapped in it. One of plates had hook in it. Weights were hung in it. I found that these plates didn't separate until weights of about 2-3 kg was applied. 2.But if slided, it moved easily. I can explain observation no. 2. It is because the...

Homework Statement "Light is incident from above two plates of glass separated on both ends by small wires of diameter d = .6um. Considering only interference between light reflected from the bottom surface of the upper plate and light reflected from the upper surface of the lower plate...

Homework Statement For two metal plates parallel to each other, when voltages was applied to them, there is an electric field in between. I measured the voltage at 12 points (known x,y,z) between them. these 12 points formed a rectangular box (three on each of four lines, which is...