Superposition Definition and 685 Threads

Homework Statement I uploaded the assignment it is problem 2 Homework Equations The Attempt at a Solution I really just want confirmation that my work is ok, and the command for a dependent current source in PSpice. The things that I found that are dependent, are very confusing...

Homework Statement Use the superposition principle to determine the value of Ix. Homework Equations I1+I2+I3=0 KCL V1+V2+V3=0 KVL Ix'+Ix''= answer The Attempt at a Solution So I understand how to get Ix' its just standard KVL it is -10+2Ix'+Ix'+2Ix'=0 which solving for Ix' gives 2A...

Homework Statement http://imageshack.us/a/img823/5397/homeworktest2prob4.jpg Find the current i using superposition Homework Equations V= IR, KVL, KCL, Superposition procedures The Attempt at a Solution I' + I'' = i say I' then 7A source cut off say I''...

Homework Statement http://imageshack.us/a/img14/2387/homeworktest2prob2.jpg a. Find the Thevenin equivalent circuit with respect to terminals a, B for the circuit. b. Find also the Norton equivalent circuit with respect to the terminals A, B, for the circuit Homework Equations V = IR...

Homework Statement http://imageshack.us/a/img834/5512/homeworkprobsg216.jpg Using superposition, find i.Homework Equations V = IR, KVL, KCL, Nodal / Mesh analysis, voltage division, current divisionSuperposition procedureThe Attempt at a Solution So this time the dependent source is a...

Superposition principle? How to algebraically add up two equations?? How do you add up (λ (√3)) / (4pi(ε naught)R) (√3/2 i hat - 1/2 j hat) + (λ (√3)) / (4pi(ε naught)R) (√3/2 i hat + 1/2 j hat)? the 1/2 j hat cancels out right? but what do i do with everything else?

Homework Statement Find the resultant of the superpostion of two harmonic waves in the form E=Ecos(α-ωt) with amplitudes of 3 and 4 and phases of π/6 and π/2 respectively. Both waves have a period of 1s. Homework Equations ω=2πf = 2π/t The Attempt at a Solution I first...

hi... Got to ask about superpostion of waves... When two coherent light waves cross each at some point in space moving in different directions, do they superimpose? If they do, do we need a screen to be able to see the resultant or we can see it directly. Let's just assume we have a laser...

Homework Statement The problems are attached in the photo below (or at least I'm hoping they are, doing this from my Ipad makes this somewhat diffcult) Homework Equations Not really an equation, but the Principle of Superposition states that the amplitude of two interfering waves are added...

Homework Statement A black box with three terminals, a, b and c, contains nothing but three resistors and connecting wire. Show that no external measurement can distinguish between these two possible set-ups, known as Delta and Y: http://i45.tinypic.com/mcd9gp.png Is there any other...

I was wondering what connections there are between the Bose Einstein Condensate (BEC) and the Superposition principle. The BEC is a collection of quantum particles that as a whole apparently follows the same rules as quantum particles, so does this mean that the superposition principle would...

When a particle is in superposition of energy eigenstates and has a probability of being found in either state, what does that say about the energy of the particle and conservation of energy. What I mean is, since the energy eigenstates have different energy values, where's the rest of the...

Hi, I am preparing for my circuits final and I am having trouble with this question. Can someone guide me through it? I am trying to solve this using phasors. I know I will have to use superposition since the circuit contains sources with different frequencies. So first I start of...

Here are two seemingly unrelated arguments to explain why GR is a nonlinear theory: (1) By the equivalence principle, any form of mass-energy should cause gravitational fields. Since gravitational fields carry energy, they should cause gravitational fields. (2) GR doesn't care what...

Homework Statement a 7.0 kg point mass and a 17 kg point mass are held in place 0.5m apart. A particle of mass (m) is released from a point between the two masses 0.2m from the 7.0kg mass along the line connecting the two fixed masses. Find the magnitude and direction of the acceleration of...

Homework Statement Is the answer to the following circuit: 600 mA? I seem to be getting 660 mA for some reason...

Ok, can anyone tell me if my steps are correct. Find volts in the 30ohms part1 1. eliminate current source 2. transform battery to current source 3. applied mesh method to find current at 30ohms part2 1. eliminate battery source 2. applied mesh method to find current at 30ohms...

Homework Statement http://tinyurl.com/cercnq3 Homework Equations V = IR The Attempt at a Solution I don't even know how to begin. Am I supposed to use superposition? I rad about it online but don't know how to apply it.

Homework Statement This is something I should know, but I keep getting mixed up when I try to think about it. A quantum state can be written as a superposition of basis states such as \left | n \right \rangle So let's say I have a particle in a potential with discrete energy levels...

Homework Statement http://www.wifstrand.se/Albert/stuff/p6.5-9.png I'm stuck with finding v_o1 (voltage over the 10kohm resistor when all sources but the 3 V source, which I've labeled v_1, is set to zero); seems like it should be really simple but I'm missing an equation. Homework...

Suppose we send a single mechanical pulse down a wire from one side and an identical one with the top down from the other side - like on the picture. Now suppose these two pulses interfere destructively. Then there is a specific time at which the string is completely at rest. My question is...

When you work with an emf of the form: U(t) = a0 + Ʃaicos(\omegat) it desperately cries for using Kirchoffs law for each term in the sum independently. I guess you can do so since Kirchoffs law is linear but then other the hand I get something weird physically when doing so. In every...

Hello I would appreciate if someone can refresh my mind with the principle of superposition..

Structure and dynamics in the microcosm are inherently connected by the laws of quantum mechanics. Take, for example, a particle put in a superposition of its ground state 0 x of energy W 0 and the first excited state 1 x of energy W 1 . Such a superposition state is referred to...

Homework Statement We have this circuit. The problem states to find i, or the current through the 3 ohm resistor. Homework Equations V = IRThe Attempt at a Solution I've started by shorting out both voltage sources and leaving only the current source in the circuit. I paralleled the 4ohm...

Homework Statement http://imgur.com/fvNbE Part a needs to have up to 2 significant figures. For part b. you need to find theta or the degrees counter clockwise from +x direction.Homework Equations Coulombs Law: F = 9(10^9) |q1q2|/r^2 r = distance in meters of two chargesThe Attempt at a...

Homework Statement the first two energy eigenstates of a 1 nm wide finite well of barrier height 8vo have energy eigen values of 0.66ε and 2.6ε. calculate the expectation value of a linear superposition of these states? Homework Equations airy equations The Attempt at a Solution...

I'm taking an introductoruy course on QM and qubits and my professor is frustrating me by using anthropromorphic terms to decribe superposition. He says, " the electron doesn't make up its mind to be in the ground or excited state until the measurement". Can someone give me a better explanation?

Homework Statement A very long cylinder of radius R has positive charge uniformly distributed over its volume. The amount of charge is λ Coulombs per meter of length of the cylinder. A spherical cavity of radius R' < R, centered on the axis of the cylinder, has been cut out of this cylinder...

Consider a lens of diameter d and a focal length f >> d. Let the cross-section area of the lens be S = N*λ^2. Let a plane wave be focused from S to an area S1=λ^2. Then, by the linear superposition principle the electric field intensity in the area S1 will be N times greater than it was in...

Is double slit experiment the only proof for quantum particles' superposition??

Does Pauli's exclusion principle apply to superposition or only collapsed states? I.e. could a particle be 'superposed' - if that is the word in the same state as another electron in a localized region? Also doesn't Pauli's exclusion principle create a form of measurement because...

hello i have question : how the superposition principle proves continuity of ψ in potential barrier

Do Lorentz Transformations or their products having irreducible representation, and is superposition allowed or special consideration are needed?

Hi All, First off, thanks to all the old hands at physicsforums, you guys are truly an amazing resource. I was thinking about a system today that at first glance, appears to violate local conservation of energy for two mechanical wave pulses interfering with each other. Consider a...

I am tasked to answer the following question on the subject of coupled pendulums: QUESTION: The Antisymmetric and symmetric normal modes can be superposed to obtain new solutions. Can ANY solutions be written as a superposition of these two modes? Justify your answer. Hint: Is a solution...

This isn't really a single question, but rather a series of speculations, where you can hopefully help me understand some of the things. Soo.. Classical mechanics are, at least on basic level, based on the euclidean geometry, which allows you to add forces as vectors. Often this means that we...

Hey there! I'm still a beginner with many physics theories, so this may be an obvious question. I understand that a specific particle will exist in all of its possible states simultaneously, but once measured or observed, it will take only one of these possible positions (Please correct me if...

Hello, I need a help for making a short visual presentation of superposition and wavefunction collapse. It will be a power-point presentation for young students. I have an idea to show a superposition as a "perfect noise", which can be visually achieved as a uniform gray background or total...

Homework Statement the question is find the current through R1 R1= 10 Ohms R2=8 ohms current source=9A E=18VHomework Equations The Attempt at a Solution I have tried removing the current source and i get a short circuit on R1 and hence i obtain a current of 2.25A

I've just watch MIT open course 8.03, vibrations and waves, lecture 14, and think of a weird problem, if a particle(with charge) in vacuum, say a proton or an electron, regardless of the size because of far-field consideration, like what's shown in the attachment, is moving along a straight...

Homework Statement Apply the principle of superposition to draw the resultant shape when each of the sets of pulses shown interferes. (Draw the diagrams so that the horizontal midpoints of the pulses coincide.) Homework Equations Please check this website...

Suddenly I am at a loss with something I used to think I understood! From Consistent Quantum theory, Griffiths, pg 51: Our basis is |z+>, |z-> I can write |w+> = +cos(α/2)exp(-iθ/2) |z+> + sin(α/2)exp(iθ/2) |z-> In this case, if I choose α = π/2 and θ = π, then this |w+> points in...

A string with tension F Newtons, mass m kilograms, and length L meters is clamped at each end (y=0 at x=0 and x=L). At time t=0, the displacement in the y-direction for each point x on the string is defined as: y(x, t = 0) = 2 sin ( 2πx/L) + 3 sin (πx/L) = y1(x, t = 0) + y2(x, t = 0) (a)...

According to superposition principle the circuit involved must be linear and bilateral right? But how comes the theorem is sometimes used in some of electronics problems example the diode circuits of which are unilateral circuits... Can anyone please explain me clearly the limitations of this...

I have this assignment, basically I had to do the same thing in simplified way and then superposition theorem. Apparently the answers don't match. I'm pretty sure the mistake is in superposition theorem. It could be some really stupid and simple mistake I made since I'm no good at this at all...

Hello, So I'm reading about isospin in Griffith's Introduction to Elementary Particles, but the concept seems rather fishy, and I'm not quite sure what to make out of it. For example, if p and n (proton and neutron) are seen as different states of the same system, then what does...

Homework Statement Two wave pulses on a string approach one another at the time t = 0, as shown in the figure below, except that pulse 2 is inverted so that it is a downward deflection of the string rather than an upward deflection. Each pulse moves with a speed of 1.0 m/s. Make a careful...

Homework Statement Find the amplitude and phase shift of the following two superposed harmonic oscillations. Homework Equations x1(t)=3sin(2∏t+∏/4) x2(t)=3cos(2∏t) The Attempt at a Solution Ok normally i would be able to do this, however one oscillation is cos and the other sin...

why we take current source as a open and voltage source as a short in superposition theorem. is this is because of its internal resistance or any other reason exist?