What is Components: Definition and 946 Discussions

An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. Electronic components are mostly industrial products, available in a singular form and are not to be confused with electrical elements, which are conceptual abstractions representing idealized electronic components and elements.
Electronic components have a number of electrical terminals or leads. These leads connect to other electrical components, often over wire, to create an electronic circuit with a particular function (for example an amplifier, radio receiver, or oscillator). Basic electronic components may be packaged discretely, as arrays or networks of like components, or integrated inside of packages such as semiconductor integrated circuits, hybrid integrated circuits, or thick film devices. The following list of electronic components focuses on the discrete version of these components, treating such packages as components in their own right.

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  1. Y

    Are Lx, Ly, Lz (the components of Angular Momentum)independent to each other?

    In Classical Mechanics, are the three components of Angular Momentum L: Lx, Ly, Lz independent to each other? It seems that there is an identity in Classical Mechanics (Sorry, I can hardly remember where I saw it): [Li, Lj] = εijk Lk. Note: [] is Poisson Bracket, εijk is...
  2. A

    Components of E for a waveguide problem.

    Homework Statement For a rectangular wave guide the components of E were found to be Ex = A1 cos( k1 x) sin(k2 y) e-i (\omegat-\gammaz) Ey = A2 cos( k1 x) sin(k2 y) e-i (\omegat-\gammaz) Ez = 0 Show that in these equations A1 = -A2 k2 / k1 Homework Equations See part (a)...
  3. K

    This problem has plagued me for years: finding SPICE models for real components.

    For years I have mastered the art of simulation and testing, but I almost never seem to be able to find SPICE models for real devices. For example, the TI OPA548. It's a high-current power op-amp. I would love to run some simulations...but I can't find a model of it anywhere to use in...
  4. michael879

    Contravariant metric components

    I realize this is a "simple" mathematical exercise, in theory, but I'm having a lot of trouble finding some algorithmic way to do it. The problem is this: I want to expand the contravariant metric tensor components g^{\mu\nu} in terms of the covariant metric tensor g_{\mu\nu}. The first order...
  5. W

    What are the Components of a Circuit?

    Homework Statement A circuit contains two elements which are either L, R or C. The current in the circuit lags the source by 50 degrees when connected to a 120V, 60 Hz and i= 5.6A source. Homework Equations tan Φ = X/R X= wL R= V/I The Attempt at a Solution (The question does not...
  6. W

    Two unknown components (RLC) of a circuit

    Homework Statement A brief description of the current condition here; I'm in confusion. The question states that there are 2 unknown components in a circuit and we are to find it using the given data. The voltage, current and frequency are irrelevant for the time being. I'm more interested...
  7. M

    Finding Resultant Force and Equilibrant: Components Math Problem

    Homework Statement two forces of 40N and 50N act at an angle of 60 degrees. determine the resultant force and the equilbrant this is what i have so faar: resultant=F1 + F2 let F1 be along the x axis add x and y components: F1x=40N F1y= none since its along the x-axis...
  8. R

    The Affine Connection components

    Hello! I have a few questions about how the Affine connection works. I know the geodesic equation; \Gamma^{\lambda}_{\mu \nu} = \frac{\partial x^{\lambda}}{\partial \xi^{\alpha}} \frac{\partial^{2} \xi^{\alpha}}{\partial x^{\nu} \partial x^{\mu}} So, for example, if I had the...
  9. B

    Finding Connected Components of a Set of Circles

    I came across this question. We're looking for the conctd components of this set of circles: centered at (0,1) and with radius 1-1/n B ((0,1), 1-1/n) for n = 3, ...to infinity The radii are getting larger up to 1. I'm thinking the connectd comp. form an open set at infinity would it be...
  10. X

    Effects of a Motor on sensitive electronic components

    Hey, my first post on here, just wanted to ask how to calculate the effect of a motor, and a switching current in the wires supplying the power on the surrounding electronics. The two motors will be supplied a PWM signal of 20Khz frequency, 5amp, 7v2 at 80% duty cycle. This is part of a...
  11. C

    Solving Vector Components and Theta with Pythagorean Theorem

    Homework Statement Vector A= 5.00 m (See the attached image for the graphical representation) Vector B=17.0m Vector C=15.0 m Homework Equations Pythagorean Theorem, Basic trigonometry The Attempt at a Solution Finding the magnitude of the resultant vector is not...
  12. T

    Irreducible components of affine Variety

    I am having problems finding the irreducible components of the variety W=V(x^2-y^2, y^2-z^2) the 1st part gives x+y, x-y, the second y+z, y-z, but I am pretty sure they are connected!
  13. K

    Components involved in degrees of freedom?

    Hi, I'm a total layperson, haven't taken a physics class since AP in high school. Trying to figure some stuff out for some writing I'm doing (poetry, bizarrely enough). So excuse if this question is super-simple or if the terms of the question are nonsensical somehow. "Degree of freedom" in...
  14. F

    Breaking up vectors into components

    A surveyor walks 120 meters from a beginning point at 0 degrees along the east boundary line. he then turns 90 degrees north for aprox. 260 meters. on the way back he then walks 325 meters west at 155 degrees. determine the magnitude and direction of the resultant vector using the head to tail...
  15. L

    Square wave spectral components

    Why does a square wave contain only odd harmonics of the fundamental? If the even harmonics are low, how low are they. What happens to the even harmonics.
  16. R

    Creating a Dynamo System: What Components Are Needed?

    Just need a bit of clarification, I am attempting to make a dynamo system but not totally sure where to start. What components would be required? It needs to be pretty small, similar size to that used in a wind-up torch, and it will be required to produce heat rather than light. Any help...
  17. D

    Total velocity potential and velocity components (Wave equation Potentials)

    Homework Statement hey I am having trouble figuring this out. The question states that i am to find the second component of velocity? there is a plane wave incident on a surface at (0,0). Homework Equations the incident potential is \Psi^{I} (x,t)= A\, e^{-i\omega (t-...
  18. T

    Problem with differentiation and area of components

    Homework Statement The diagram attached shows a solid engineering component which consists of a solid cylinder of length L and radius r, together with a right circular cone with semi-vertical angle = 11 degrees. The total surface area of the component is 481. The component is to be...
  19. A

    Solving a Force Problem: Using Components of the Force

    http://htmlimg2.scribdassets.com/cjr8y68tsmk4nsw/images/3-f2357829f8/000.jpg it's the picture on the bottom P= 15 Q= 25 I was wondering if this problem can be done using components of the force, instead of using the parallelogram law or the triangle rule. I'm a little confused on...
  20. I

    What's the deal with force and velocity components?

    I have two questions about components which are closely related. The first is about how 'real' the component of a force is. Take a force F in diagram 1. You can componentize it along two perpendicular axes. Now, F\sin{(a)} is a force directed along the vertical axis. If we now componentize...
  21. J

    How do you integrate vectors, given vector components?

    Homework Statement We're trying to integrate a vector, E, with components, Ex = 6x^2y, Ey = 2x^3 + 2y and Ez = 0, from the origin to x = -0.4, y = 6.1, z = 0.0. Homework Equations integral E dot dr = V The Attempt at a Solution i don't know how
  22. L

    Planetary Motion - Object has both tangential and radial velocity components

    Homework Statement A meteor is moving at a speed of 20000mi/hr reltiave to the centre of the Earth when it is 350 mi from the surface of the earth. At that time, the meteor has a radial velocity component of 4000 mi/hr toward the center of the earth. How close does it come to the Earth's...
  23. U

    Purpose of circuit components in this schematic

    I've been doing a project with condenser microphones, and I came across a schematic (see attached). I was wondering what some of the components do. I know the 10uF cap across pins 1 and 8 are used to set the gain (just cap makes maximum gain) of the LM386. I was told the 470uF cap is used...
  24. B

    Electric Field Near Flat Metal Plate: Factors & Components

    Homework Statement Explain the factors that determine the parallel and normal components of the elctric field near to the surface of a flat metal plate Homework Equations The Attempt at a Solution No idea what this question wants..? Is it something to do with the smoothness of...
  25. P

    Vector addition. finding x & y components, the magnitude, & the angle

    Homework Statement Two vectors have equal magnitude of 14.8 m and the angles are theta 1 = 32 deg & theta 2 = 108 deg. Find a) their x component b)their y component of vector sum \vec{}r c) the magnitude of \vec{}r & d) the angle \vec{}r makes with the positive direction of the x axis...
  26. R

    Components of a covariant vector

    Homework Statement Consider the following two basis sets (or triads) in {R}^3: \{\vec{e}_1, \vec{e}_2, \vec{e}_3\} := \{(1, 0, 0), (0,1, 0), (0, 0, 1)\} \{\widehat{\vec{e}_1}, \widehat{\vec{e}_2}, \widehat{\vec{e}_3}\} := \{(1, 0, 0), (1,1, 0), (1, 1, 1)\}. Let a covariant...
  27. M

    What is the y-component of force on astronaut's jump on the Moon?

    Homework Statement Suppose the astronaut has a weight on Earth of 190 lbs and is wearing a space suit that weighs an additional 180 lbs on Earth. What is the y-component of the force in Newtons on the astronaut and his space suit during a jump on the Moon? Show your calculation. Does the...
  28. T

    Motion in curves - Find radial and circumferential components of V and A

    Homework Statement At time t, a comet has the position R = (t2-1)i + 2tj At t = 2, find the radial and circumferential components of velocity and acceleration Homework Equations Vr = V * Ur Vθ = V * Uθ ar = a * Ur aθ = a * Uθ Ur = cosθ i + sinθ j Uθ = -sinθ i + cosθ j...
  29. A

    Boulder on a hill (Vectors and components)

    Homework Statement A boulder of weight "w" rests on a hillside that rises at a constant angle "a" above the horizontal. The boulder's weight is a force on the boulder that has a direction vertically downward. In terms of "w" and "a", what is the component of the weight of the boulder in the...
  30. A

    Engineering Circuits components and safety functions

    5 fundamental circuit components or functions and what are some safety functions that are performed in most practical power circuits? thanks:)
  31. B

    Find components of vectors on F

    1. Problem is pictured here. http://engineeringhomework.net/statics/hw1p14.html" I have already found the x and y components, but I don't know how to get the u and v as shown.
  32. B

    Determine u and v components of the Force F.

    1. Problem is pictured here. http://engineeringhomework.net/statics/hw1p14.html" I have already found the x and y components, but I don't know how to get the u and v as shown.
  33. P

    Understanding Vector Components in Quantum Mechanics

    Homework Statement I read how to solve a problem I am working on, and part of it deals with adding vector components. A is the vector, Ax is the x component, Ay the y component, and theta is the angle A makes from the y axis.Homework Equations The Attempt at a Solution The solution involves...
  34. R

    What is the relationship between 4-momentum and energy/momentum components?

    Firstly, apologies for the notation. The 4-momentum of a massive particle (rest mass m) is defined by p=mu where u is the 4-velocity. Thus in a frame S in which a particle has 3-velocity u the components of p are [p]=gamma*(mc,mu) How can we then identify the zeroth component of...
  35. T

    An engineering system consisting of n components

    Problem: An engineering system consisting of n components is said to be a k-out-of-n system (k<= n)if and only if at least k of the n components function.Suppose all the components function independently of each other with a probability 1/2. Find the conditional probability that component 1 is...
  36. D

    Sketch the waveforms of the harmonic components

    Homework Statement Sketch the waveforms of the harmonic components in the output and the resultant output voltage Homework Equations Vo= 0.98sin(1600*pi*t) - 0.1cos(3200*pi*t) + 0.1 The Attempt at a Solution I know that the 0.1 will be a straight line The amplitude of the sin wave...
  37. G

    Determining Tension Drop Over a Capacitor with AC Components

    Homework Statement ac with R-C coponents. Determine the tensiondrop over a capacitor in a circuit with ac. Homework Equations The Attempt at a Solution In the solution they use components of the V in sin and cos for the V of the capacitor but should it not be squared and then the...
  38. D

    Covariant and contravariant components

    Homework Statement Consider the two-dimensional space given by ds^2 = e^y dx^2 + e^x dy^2 Calculate the covariant and contravariant components of the metric tensor for this spacetime. The Attempt at a Solution Are the covariant components just e^y and e^x with the...
  39. K

    Average Length of Life of Two Exponentially Distributed Components

    1. Suppose that two electronic components in the guidance system for a missile operate independently and that each has a length of life governed by the exponential distribution with mean 1 (with measurements in hundreds of hours). (a) Find the probability density function for the average length...
  40. M

    Parallel and perpendicular components of acceleration

    Homework Statement I read that if the direction of velocity is perpendicular to the acceleration the magnitude doesn't change and if they are parallel the direction doesn't change and if they are neither both change but if we have v1=6i+8j ,|v1|=10 theta with positive x =53 v2 =10j...
  41. M

    Finding Components of the Christoffel Symbol

    I'm finding it hard to understand this, does anyone know where I can find worked examples of how to find the components of the christoffel symbols of a metric? Please don't give me one to try, I really need a worked example. Thanks :S
  42. R

    Spectral filtering of RGB components -

    My application involves narrow-band notch filtering of primary red, blue, and green wavelengths simultaneously from a white-light source. Will this yield greyscale output, black, or white? What if the light source is a RGB display? I understand that this may be a naive question - but it's...
  43. H

    Kinematics: Final velocity components

    Homework Statement A skier leaves the ramp of a ski jump with a velocity of 10.9 m/s, 13.9° above the horizontal. The slope is inclined at 48.4°, and air resistance is negligible. Calculate the velocity components just before the landing. Enter the x-component (horizontal) first and then the...
  44. U

    Calculate Torque of Force F Applied at r Around Origin

    Homework Statement The force F = (15x - 22y)N is applied at r = (4.0x + 7.0y) meters. What torque (about the origin) does this force produce? Homework Equations Torque = r * F * sin theta r = magnitude of radius, F = magnitude of F, theta = smallest angle between the directions of r and F...
  45. S

    Electronic components consideration in mechanical design

    Hi all, I am fresh mechanical design engineer. I have some questions regarding the electrical components and wiring issues in mechanical design: (1) For an electromechanical system, how serious will motor influence the electronic components and wiring in terms of creating electromagnetic...
  46. D

    No. of field equations and components or Riemann tensor?

    no. of field equations and components or Riemann tensor?? Someone was trying to explain to me about curvature in space. From what I got from what they were saying doesn't make sense to me. I'm not sure I understand what the number of components, N, of R\alpha,\beta,\gamma,\delta when compared...
  47. S

    Measurement of two components of electron spin

    Quantum physics texts describe how it is impossible to measure S(z) and S(x) spin components of a single electron at the same time where z represents the z axis,etc. What would happen if you try to trick nature by using a correlated pair of electons, emitted from an ion, moving in opposite...
  48. K

    Calculating x and y Components of Equilibrium Forces

    Three forces A, B, and C act on a body as shown (see attachment). A fourth force F is required to keep the body in equilibrium. x-component of force F is closest to: a.+32 N b. +28 N c. -28 N d. -32 N e. +19 N y-component of force F is closest to: a. +32 N b. -32 N c. -28 N...
  49. S

    Finding components of a vector

    Homework Statement You are given vectors A = 5.1i - 6.7j and B = - 3.2i + 7.2j . A third vector C lies in the xy-plane. Vector C is perpendicular to vector A and the scalar product of C with B is 19.0 What're Cx and Cy? The attempt at a solution A.C = 0 B.C = 19
  50. M

    How can I solve a 2D motion problem with angles and components?

    Homework Statement In class we had a 2D with angles and components question. Homework Equations To find the answer I eventually got to the x=xo[SUB]+v[SUB]ot+1/2at2 equation and came up with ***-4.9(28/37cosx)2+28tanx-3*** The Attempt at a Solution But once I got to this point I...
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