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. C

    Resultant Velocity & Time for Crossing Stream: Vectors Comp. HW

    Homework Statement a boat heads due east across a stream with a velocity of 20m/s. the stream is flowing from north to south at a rate of 5.0m/s. a)What is the resultant velocity? b) if the stream is 100 m wide, how much time does it take the boat to reach the other side? c) How far downstream...
  2. J

    Rebuild Diffraction Grating From Fourier Frequency Components

    I have a diffraction grating through which I shined a 532 nm laser. A detector which can pan 360˚ was rotated around and picked up all of the transmitted diffraction peaks. Shown in the graph graph attached are the intensities of the peaks against the angle. My question is, is it possible to...
  3. A

    Determine the components of P in the i, j, and k directions.

    Homework Statement As shown, a pole is subjected to three forces: F, P, and T. The force F expressed in Cartesian vector form is F=[5 i+7 j+6 k] N. Force P has magnitude 7.48 N and acts in the direction given by these direction angles: α=143∘, β=57.7∘, and γ=74.5∘ to the x, y, and z axes...
  4. R

    Normal and shear components of the stress vector

    Homework Statement Find the normal and shear components (\vec{\sigma}_{n},\vec{\tau}) of the stress vector on the surface ABCD. Given: State of stress at a point \sigma_{xx}=3 \sigma_{yy}=0 \sigma_{zz}=-1 \sigma_{xy}=-\sqrt{2} \sigma_{xz}=1000 Unit normal...
  5. M

    Average size of connected components in grid

    Start with an infinite 2d grid of cells, with each cell randomly colored black or white (50% chance). Now take the graph G whose nodes are the cells, and with an edge (A, B) if A and B are adjacent in the grid, and the same color. What is the average size of a connected component of G? Is it...
  6. D

    How Do You Calculate the Components of Vector C?

    1. Vector A has x and y components of −20 cm and 19 cm, respectively; vector B has x and y components of 11.1 cm and −20 cm, respectively. If A−B +3 C = 0, what are the x and y components of vector C ? 2. Not too sure. I am thinking that using trigonometry or Pythagorean theorem. 3. I...
  7. marellasunny

    Why is it that acceleration has multiple components in SHM?

    I am trying to understand why in a SHM, the acceleration has multiple components(when actually we create such expressions mathematically by approximating the trigonometric expressions using the binomial theorem).I will explain what I mean to ask below with an example. In a internal combustion...
  8. A

    Laws of Multi-Terminal Components

    Hi all, I know about Kirchhoff's voltage and current laws when it comes to simple circuits with two-terminal elements and junctions/nodes of branches. However I'm curious how KVL and KCL are applicable to multi-terminal elements? Does KCL apply to any junction of branches no matter what that...
  9. P

    Vector Components and Translation

    Inspired by a question in Griffiths' E&M book (1.10), I am wondering why the components of a vector do not change when the coordinate system is translated by a constant vector. I understand that, for instance, the velocity of something moving in a coordinate system won't change if we then...
  10. O

    MHB Components working at a particular time

    Hello .Sorry for all the questions I am asking...but I have another one I would like to seek help for.: Suppose a system has 10 components and that a particular time the jth component is working with probability 1/j for j= 1,2,...10. How many components do you expect to be working at that...
  11. M

    High resistance components in low frequency cutoff butterworth

    I just recently built a low-pass butterworth filter with a cutoff of 50Hz. When I looked to purchase the parts, I noticed that each inductor had a resistance of several hundred ohms. I put this information into my simulator program and the result was something that looks nothing like the...
  12. C

    Covariance Matrix of a Vector Random Variable w/ Components Related

    Homework Statement Given X=ZU+Y where (i) U,X,Y, and Z are random variables (ii) U~N(0,1) (iii) U is independent of Z and Y (iv) f(z) = \frac{3}{4} z2 if 1 \leq z \leq 2 , f(z)=0 otherwise (v) fY|Z=z(y) = ze-zy (i.e. Y depends conditionally on...
  13. S

    Find components of initial velocity given V & H displacement

    Homework Statement (this is translated from Italian so it might have some technical mistakes :) ) A target with negligible dimensions is placed at H = 5m from the ground; a vehicle on the ground is moving at a velocity V = 2m/s (the module) and is getting closer to the target. Consider O the...
  14. R

    Trying to desolder some electrical components from a board

    I am not sure if I am allowed to post these kinds of questions here (cause I see mostly hypothetical ones, but then again I didn't look too far down the page...) but I just have a quick question for you guys. I am trying to desolder some electrical components from a board but I don't have...
  15. J

    Principal Components and the Residual Matrix

    I've been reading about principal components and residual matrixs. It's my understanding if you used every principal component to recalculate your orginal data, then the residual matrix should be 0. Therefore, I created a fake dataset of two random variables and calculated the principal...
  16. P

    Tensor summation and components.

    Hello, I would very much like someone to please clarify the following points concerning tensor summation to me. Suppose the components of a tensor Ai j are A1 2 = A2 1 = A (or, in general, Axy = Ayx = A), whereas all the other components are 0. Is this a symmetrical tensor then? How may Ai j be...
  17. S

    Electrical components connected between cells

    Hi all, I would appreciate a little guidance on some circuit theory. I was wondering how a circuit behaves when there are, say two identical 10V cells, and a 1Ω bulb happily sitting in series, but then one connects another identical bulb between the two cells. Obviously the current in the first...
  18. P

    Transforming Tensor Components with Coordinate Systems

    Hi, Homework Statement The components of the tensor Ai j are A1 2 = A2 1 = A, whereas all the other components are zero. I am asked to write A(BAR)i j, following a transformation to a new coordinate system, given that ∂q(BAR)k/∂qn = Rnk. I am expected to write my answer in terms of R...
  19. M

    Costs of some components of combined cycle power plants

    hello all I want to find costs of some components of a combined cycle power plants.like turbine.generator and ... how can I find them?
  20. C

    Sum of Forces in X and Y Directions - axis set up normally

    Being asked for the sum of forces in the X and Y directions and the axis are set up 'normally' so like a plus sign ( + ). I attempted the first one and I think I did it correctly, but I'm not so sure about the second one.
  21. mishima

    Building comparator from discrete components?

    Hi, I'm interested in building a breadboard version of the simplest comparator using transistors and resistors. Ultimately I'd like to understand the LM393 but looking at the datasheet schematic, it seems quite complicated. I was hoping there was a simpler comparator I could mimic to start out...
  22. V

    X and y components in force problem

    The problem is: A 10 kg sled is pulled at an angle of 35 o east of north by a force of 100 N and with a force of 150 N directed due east. A friction force of 50 N acts as well. What is the acceleration (both magnitude and direction of the sled. My question - could someone help me properly...
  23. T

    What kind of components are these?

    It's just for educational purpose, not a homework question :) Can you guys please identify all the five components/parts starting from the black socket like thing on the left for me? Thanks in advance!
  24. A

    Confused about vectors into rectangular components

    So, i have been learning about forces, vectors and such. I know many times for convience we break vector forces into rectangular components...fx=Fcostheta, fy=Fcostheta. It is easier to do regular alegbra verus vector alegrba My question is both fx and fy are scalars, but then they can be...
  25. M

    Definition of isometry in components form

    From the book of Nakahara "Geometry, Topology and Physics": A diffeomorfism ##f:\mathcal{M}\to \mathcal{M}## is an isometry if it preserves the metric: ## f^{*}g_{f(p)}=g_{p} ## In components this condition becomes: ## \frac{\partial y^{\alpha}}{\partial x^{\mu}}\frac{\partial...
  26. E

    Wrong signs Ricci tensor components RW metric tric

    Hi, I am working through GR by myself and decided to derive the Friedmann equations from the RW metric w. ( +,-,-,-) signature. I succeeded except that I get right value but the opposite sign for each of the Ricci tensor components and the Ricci scalar e.g. For R00 I get +3R../R not -3R../R . I...
  27. J

    I understanding the Fourier components of a square wave

    In my physics book there is an example of making a square wave by "simply" summing up a few cosine waves. The book says these first three waves are the first three Fourier components of a square wave, yet when I sum the three wave functions up, I get something way off; as does my calculator...
  28. S

    Effective atomic number for a mixture (with components concentration)

    Assume we have a concentration of any specific material (in mg/M). Let's say for example: Ag (Z=47) with concentration 10 mg/M in water (H2O, Z=7.42). How can I calculate the effective atomic number (Zeff.) for the silver-water mixture if the concentration of silver was 10 mg/M for example...
  29. N

    Splitting vectors into Components

    I suppose this is less of a "help me with a problem" question than a question asking why something happens. All semester I have been working with vectors and vector components in my general physics class. I understand how to do it and how to solve a complex problem using this method. What I...
  30. D

    Find Symmetrical Components of 5-Phase System

    I wonder if someone can help me how to find the symmetrical components of a 5-phase system. What would be the positive and negative sequences? I'm saying this because in a 3-phase system I can find the positive, negative and zero sequence in function of line currents.
  31. P

    Power in the components of an RC circuit as a Function of time

    Homework Statement A simple RC circuit with an EMF source ε, Resistor R and capacitor C are in series. When the switch is closed find the rate of energy stored in the capacitor, the power dissipated in the resistor, and the power supplied by the emf as functions of time. Homework Equations...
  32. 0

    Components of electrodynamical wattmeter and varmeter.

    Electrodynamical wattmeter has 4 connections, 2 for current and 2 for voltage. Why do we have both, how that works inside? Those 2 drive in current and those 2 voltage so it calculates how much power is it in there in some sort of mechanism? What about in varmeter, why we connect one inductor...
  33. P

    How can a photon have hadronic components?

    the wiki article on vector meson dominance says "hadronic components of the physical photons". How can a photon have hadronic photon components? Could someone please enlighten me?
  34. P

    Can you design digital multisim components?

    Hi guys, Just wondering if there Is a way in multisim to design your own components from scratch? basically starting with the input and output pins and you fill in the gate logic on the inside. Im designing an old school binary-BCD for 12 bits. I've got the theory all figured out, and I...
  35. X

    Voltage Vector/Scalar Components, SI Units, Direction and Polarity.

    All, please help me refine, restate, explain, understand, expand, add, remove, answer the below statements/ questions. Thanks in advance. 1.) Voltage is considered a scalar quantity. (J/C in SI Derived Units) which is a magnitude of energy per coulomb...no direction with this example. Some...
  36. C

    How to remove components from PCBs

    I've been tearing some old PCBs up so I can build a nice collection of transistors and caps for myself, but the problem is I haven't figured out how I'm going to pull them off the PCB without cutting the legs off. For some reason the solder is very strong and won't melt. I even took a propane...
  37. L

    Covariant and Contravariant Components of a Vector

    I think this may be a simple yes or no question. I am currently reading a book Vector and Tensor Analysis by Borisenko. In it he introduces a reciprocal basis \vec{e_{i}} (where i=1,2,3) for a basis \vec{e^{i}} (where i is an index, not an exponent) that may or may not be orthogonal...
  38. Q

    Circular motion velocity components problem

    Consider a circular hoop with a radius R and a mass M. Initially the centre of mass of the hoop is spinning, but not moving. Then a object with mass m is thrown at speed v by a spring-loaded gun with an angle of theta anticlockwise from the posive horizontal. Calculate the x and y components of...
  39. C

    What Defines the Components of a 2-form?

    Hi I'm a bit confused about what actually define the components of a form. I just saw an argument where one found that \underline{d \omega}^\rho (\vec e_\mu \wedge e_\nu) = - c_{\mu \nu}^\rho and then the author wrote that this implied that \underline{d \omega}^\rho = - \frac{1}2...
  40. T

    Resolving Components: Solving Homework Statement

    Homework Statement I know this is easy, but i can't seem to sort out how to structure it properly. This is the question: A man is pole vaulting. Also ignore air resistance. A man exerts a force of 810 N on a pole, at an angle of 80 degrees below the horizontal. If the man's weight is 600 N...
  41. H

    Basic mechanical components in modern machines

    Hi guys I would like to know, what are the basic mechanical components in modern machines? I am not referring to bolts, fasteners or gears, I'm more asking in a level of differentials in automobiles, power shaft, so on so forth. because I am sure automobiles,aircrafts, missiles...
  42. A

    Connected Components in Graph Theory

    Homework Statement Hey guys, I have this question. Given a tree T = (V , F), find an algorithm which finds u in V, so in the graph T = (V \ {u} , F) the size of each connected component is |V| / 2 at most. What is the complexity? Homework Equations The Attempt at a Solution...
  43. E

    Tangential and Radial components of acceleration and tension

    Homework Statement One end of a cord is fixed and a small 0.500 kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.00 m as shown. (I don't have access to a camera right now, apologies.) When the angle is 20.0 degrees, the speed of the object...
  44. C

    MHB Polar coordinate components

    I'm stuck on the second part of this question. Suppose a particle moves in a plane with its trajectory given by the polar equation $r=2b\sin(\theta)$ for some constant $b>0$. (i) Show that this can be written in Cartesian coordinates as $x^2+(y-b)^2=b^2$. This is the equation for a circle of...
  45. P

    Problem pertaining to relative velocity and vector components

    A woman who can row a boat at 6.4 km/h in still water faces a long, straight river with a width of 6.3 km and a current of 3.3 km/h. Let i point directly across the river and j point directly downstream. If she rows in a straight line to a point directly opposite her starting position, (a)...
  46. C

    Components of Curl, Divergence

    Homework Statement I'm trying to understand where the Cartesian components of the rotor and the divergence of a vector field derived. I read that the divergence of a vector field is defined by: \vec { \nabla } \cdot \vec { F } =\lim _{ V\rightarrow \left\{ P \right\} }{ \frac { 1 }{ \left| V...
  47. C

    Resolve force into components along different paths

    Homework Statement http://imageshack.us/a/img5/629/meprob25.jpg A. Determine magnitude of resultant force (of F1 and F2 acting on the point) B. Resolve F1 into components along the u and V axes and determine the magnitudes of these components. C. Resolve F1 into components along the u...
  48. R

    Getting the components of a sum of square waves

    If I have a periodic function that is say a sum of a number of sine functions I can use a Fourier Transform to get the component functions. Now, if I have a bunch of square waves of differing amplitudes and frequencies that I add up into a resultant waveform. Given that waveform what'd be...
  49. J

    Thin vortex filament with constant circulation; find velocity components

    Homework Statement In a xyz cartesian coordinate system, a thin vortex filament with constant circulation Gamma, forms a square (in the xy plane), with each side of the square having length L. You are told that an infinitesimal segment del (vector) of this filament induces an infinitesimal...
  50. A

    Curvilinear Motion: Rectangular Components

    Homework Statement What is the magnitude of the velocity at t=4.00s? I would like to see if my approach and answer is correct. Homework Equations Position: r = {-30cos(\frac{\pi}{10}t) i + 30sin(\frac{\pi}{10}t) j - (7t) k} ft The Attempt at a Solution I took the first...
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