Generator Definition and 1000 Threads

The aluminum sphere on it is generating a positive charge and the wand a negative. If I put a ball on the wand, will it charge the same way the big one does? Just opposite charge? anyone know about this thing?

I'm playing around with a toroidal coil and eventually want to use it for some wireless power transfer experiments. My problem is that i need a function generator that can output around 1-5 mhz, and they are kinda pricey. I'm not going to need to know the precise frequency I'm producing, just to...

I've been doing some research on magnetism the past few days out of curiosity, and I had an idea, but I don't know enough to tell wether or not it might work, and i don't have the materials or money to get them to test it, but here goes. Basically my idea consists of something similar to a...

hello, Part of a little project of mine consists of writing C code to build a image file in .ppm format which can be viewed by the simple program xnview. The image size is going to be 256 x 128. My code below generates a image with a smooth transtiton/graident between very dark red to light...

There is an invention of a hydrogen generator. It runs on water only as fuel. Battery starts and stops like a car. Has a variable output. Does anyone on this level feel it has any value?

hello, Part of a little project of mine consists of using arrays, loops and writing files, in C to build a image file in .ppm format which can be viewed by the simple program xnview. The image size is going to be 256 x 128. I can use notepad to create simple images of flags ect. but am...

I had a idea a while ago about a possible energy generator. I was wondering if you set up a plasma arc, then circulated gases through the arc so they would be ionized. Then, the ionized gases were moved through to a wire net through means of a strong fan or magnetic fields. Would it be...

Hey, I am fiddling around building, basically an alternator. Well, this is what i have designed so far. I made two copper coils, then squished so they were very eliptical and then connected the two flat coils together with zip ties and made a large coil. Basically, the large coil is the two...

Hey, I am looking to build a generator that goes on a bike stand so when i ride my bike on the stand it will produce electricity. Im planning on having a copper coil with magnets inside spinning. This is a dc generator right? Well, anyways... i know if i spin the magnets faster it will...

Hey guys I've done my transmitter. it works fine. But, I need to know how to feed it with input from a generator within taking into account that such a transmitter has two channels R+L. shall i use two different generators to feed every single channel ? I really need some help.

I am on an assignment to test the domain of input values of a tachometer, and what output (deflection) different values correspond to. In other words, what's the minimum and maximum signals and what does the curve look like? The trouble is I can't get ANY useful information. The tach has...

I believe it seems possible that a plasma generator could be constructed to ionize the gases used in the making of the plasma. A plan needs to be worked out to construct an energy collector to collect the energy that is given off by the ionization of the plasma gases. Now, in order to "recycle"...

Is anyone aware of any data or publications on "generator monitoring using unique electrical profiles created by shaft grounding devices " ? if so let me know some links I can't find information on it anywhere.. it is relatively new though.

FEM -- mesh generator, transition elements Hello, I would like to implement 2D mesh generator. Mesh should consists of triangle and rectangle elements and those triangle elements will play a role of transition elements. The example of such mesh is here: http://pkow.pl/transition_element.jpg...

If you want some background information on the project I'm working on, continue reading. If you just want to help then you can just skip to the bolded part. I'm supposed to build a pedal powered generator for an engineering class with a group. We are using a treadmill motor and pressing the...

I have been working on a holistic system involving flywheel-generators and http://www.lightoftheworld.com/profiles/blog/show?id=1591481%3ABlogPost%3A2884" as the power source. With all of the recent publicity given methane as a potential source of energy I figured that this was the way to go...

I'm stuck on the calculations concerning the sizing of the shell and tube condenser, about the equations to use..is the log mean temperature difference equation needed? what is the best type of generator to use in a steam power plant?

Consider a simple alternating current generator such as Hippolyte Pixii's dynamo. The current generated by such dynamo can be described as simple oscillating cosine signal. Assuming for simplicity that the max current generated each time a pole of Pixii's magnet passed the coil is (2/pi)0.5...

Consider a simple alternating current generator such as Hippolyte Pixii's dynamo. The current generated by such dynamo can be described as simple oscillating cosine signal. Assuming for simplicity that the max current generated each time a pole of Pixii's magnet passed the coil is (2/pi)0.5...

Hi all, I am having trouble proving the following proposition: \bar a is a generator of the additive group Z_m if and only if gcm(m,a)=1. Well, first let's start with what i know. I know how to prove the following: Let G=[a] be a cyclic group of order q. Show that a^s is a...

Homework Statement The scale transformation is a continuous transformation which acts on a function f(x) according to D_{s}f(x) = f(sx) where s is a real number. There is a continuous family of such transformations, including the identity transformation corresponding to s = 1...

Hi All, I have a 10hp Petter diesel engine that i want to drive an AC Alternator--Generator 240v AC. Is there an online calculator for this or can somebody help me size the correct KVA Alternator for it, i want to produce the maximum power i can with this engine to keep it loaded. Thank You

I am trying to generate 2 normal random distributions (x1,...,xn) (y1,...,yn) that have a predefined degree of correlation between them. The constrain is that I am trying to have the same mean and stdev for both of them.

Homework Statement The conducting coil rotates around the axis of rotation in the direction of the right-hand rule (thumb pointing along the axis of rotation, the fingers curl in the direction of rotation). A uniform magnetic field B points from left to right. The "flux" refers to the...

I also posted this under Computer Science incorrectly... I am curious if anybody knows how to build an Electromagnetic Pulse Generator (aka EMP). I've looked for a guide online, but all of the ones I've seen are far too advanced and/or powerful for my purposes. I'm looking for about a 5'...

Homework Statement How much work is done by a generator or some other source of potential difference in moving 1 mole of electrons from an initial point of electric potential 9.00 V to where the potential is -5.00 V Homework Equations Im sure what to do The Attempt at a...

Hi everyone Books mention the Open Circuit and Short Circuit tests on a synchronous generator in order to determine its synchronous impedance. One observes that the Short Circuit Characteristic (plot of short circuit armature current versus field current) is a straight line all the way...

i am confused about how to find the subgroup of a quotient group given a generator. for example, a lot of problems give as the group Z/nZ with n very large. how do you find the subgroup given a generator? thanks!

Homework Statement The coil of an ac generator has an area per turn of 1.2x10-2m2 and consists of 500 turns. The coil is situated in a 0.13-T magnetic field and is rotating at an angular speed of 34 rads/s. What is the emf induced in the coil at the instant when the normal to the loop makes an...

what is generator? does it have an definition? what is it used to do? thanks

I'm trying to convert an old 12 Volt car battery into an HHO generator. I want to achieve electrolysis of water using a dead battery as the vessel. A battery seems to have all of the necessary components: water tight case, electrodes, connections, and vent holes. I've witnessed other...

hi, i want to know if i can tie 2 generators together to get enough amps to run my house. i have an older 10 hp 4.5 k watt genset and a 5.5 hp 3 k watt genset. the 4.5 k genset is a 240 plug in but only 15 amps my ac is 240 at 30 amps and dryer require 220 at 30 amps. thanks

Is it possible to construct 2 devices which simultaneously generate (the same) random bits indefinitely? No matter how far apart spatially they are. And I don't mean a pseudorandom number generator with the same seed. I mean something like sharing entangled particles, but without the need to...

Benefit of a "Vortex Generator" in a turbocharged automotive applications As the title states, What is, if any, benefit of creating a vortex in the air flow prior to it entering the turbocharger. Here is a photo of the "Vortex Generator" in question...

I have made a Solar collector out of a 10' diameter satelight dish and lexan mirrors. I have a collector that converts water to steam ( 20lb propane tank) at a rather frightening rate I must add. Now i have a dilema. Where can I buy a turbine that i can bolt onto this scary steam source...

This is not a homework problem, just the musings of a bored mind. Suppose I plumbed a loop from some non-conductive pipe, say PVC. In this loop I placed a pump, also non-conductive. Let's say I place the pipe in a powerful magnetic field, perpendicular to the flow of fluid in the pipe. If I...

I recently acquired a Texronix 454 and would now like to purchase a function generator. What would be a good cheap f.g. to accompany the 454.

I am writing a program in Fortran language, in which i use a Random Number Generator (RNG) subroutine. Until now i used ran1 from " Numerical Recipes in fortran ,second edition, Page 271 ", but i think it is quite slow. While searching on the internet for a faster RNG i found a few...

I always thought that an electrode is what transforms the mechanical energy of a generator into electrical energy. In a children's book about technology that I was reading yesterday, I saw something that has confused me. The book seemed to imply that the movement of a the wires of a coil...

Homework Statement A generator uses a coil that has 80 turns and a 0.35 T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine the length of the wire from which the coil...

David Hamel (1924-2007) made a generator, and some people might know it from mythbusters where they made one for the anti-gravity myth. Even though it didn't work for the anti-gravity the generator itself seemed to work. I then read on the internet that it is supposed to run for 100's of years...

I'm trying to build a simple Van De Graaff generator, for the first time. The problem is quite obvious - the current generated is zero. Can somebody help to find what is wrong? The column is a typical sewer pipe, axles are aluminum bars, electric screwdriver acts for motor. The upper...

Hi I need to find the generators of the Poincare group in the representation of a clasical scalar field. Every textbook I found let them as P and M. But any buk does not what are they. I'm wondering if anybody help me to find this Uda

Hi I just wanted to run this hypothetical power plant idea past you physics guys to see what kind of feedback I could get. My general question is "Could man-power through the use of massive gears, be used to turn a very large generator.?" The generators used in the Three Gorges...

First of all, i do not know if this is the ideal forum. If not, mods, please move it. Second of all, I know the title is redudant but whatever. Anyway, I am doing some experimental work that requires us to be able to controll the current, but we want to have it be a sine wave. We had been...

A friend of mine posed the idea of having magnets on the bottom of cars drive over a large cage of conductor material buried under the pavement on the highway, as a way to generate electricity. Does this pose any practical application? Any immediate problems/concerns come to mind? I haven't had...

i am working at a thermal power station as a summer tranii in india...today my instructer told d protection of geneartor he tells us over current protection ... i am not satisfied ...is dere any over current preotection exists or not?

Hello all, Is there anyone out there who can help me out? I have developed a drive system for a generator, but... the big but... in need to know how to build the appropriate stator for it. Assume this is of the windmill electrical generating variety, where magnetic coils produce AC...

Hi, I'm just an enthusiast. I want to generate electricity by driving a/c generator with the help of a motor and that motor will be powered by an inverter. Usually we see generator driven by an engine commonly known as "Electric Generator". But in my case it will be the motor which will drive...

Homework Statement Hi all. I can't seem to understand how to apply Lenz' law to a disc rotating in a magnetic field that is perpendicular to the discs plane (see first page on PDF): http://www.pa.uky.edu/~latimer/phy232s08/lectures/phy232l31_4.pdf I can see that using the right-hand...