Generator Definition and 1000 Threads

Hi, I was thinking about the graviton ride at amusement parks - the one that sort of simulates the feeling of gravity by spinning. I was wondering if the pressure between two objects (such as your head and the surface when spinning around) is potentially useful in terms of power generation, via...

Hi all, I've posted a little bit here in the past but I don't think anyone's going to really remember me from those. I hope to come back more frequently now, especially since I've now learned how to use the TEX feature. There was a post with members asking somewhat similar questions a couple...

Hello peoples. Im attempting to build a van der graaf generator and a small tesla coil. Hopefully I have come to the right place for help. Firstly I'll start with van der graaf generator. I am going to use pvc lower roller (negative charge) and nylon upper roller (positive). any suggestions...

I need to make this Random Insult Generator work... I mistakenly thought it had compiled correctly, but I guess something went wrong. I would really appreciate some help with this as soon as possible. Thanks (I apologize for the sloppy code, I just saw Java code for the first time a few weeks...

a.by creating current by rotating in an existing magnetic field? b.by creating a varying magnetic field with its rotational kinetic energy c.by rotating through areas of high and low electrical force An electric field produces a magnetic field even when there is no wire to conduct a...

Greetings, Sorry to bother you with such a trivial question, but I'm looking for a high frequency (>500 MHz) 2 channels square wave generator. Do you know any material (not too expensive if possible) that would match these specifications? Many thanks!

Hi, this question might seem really basic but I can't seem to wrap my head around it. For a DC generator (like the hand cranked ones used in science experiments) the generator gets harder to crank when connected to a resistor since it is harder to move the electrons through the wire/circuit. The...

can anyone tell me how to solve for the voltage output in a generator and all the variables needed to solve it. What if I only have the RPM can I solve it? thanks

What formula can I use to determine the resistance of an electrical generator?

I'm searching for an example of how to find out generator function for a canonical transformation, when new canonical variables are given in terms of old variables. Any help is greatly appreciated.

I have to construct a wind power generator out of straws. It has to provide no less than 3V and .2W for a period of 1 minute and be able to withstand a horizontal force of 15N. How would I determine what size the rotor would have to be to create this voltage and current from 15N ?

First off thanks for the quick replys on my first post. Now, I'm looking to build a home-made generator, I've been told that I can just reverse the motion of a electric motor and *poof* it becomes a generator, is this true? And I was also considering just using a automobile alternator as my...

Hi folks, I have a question concerning the infinitesimal generator of a stochastic ;process, more specificaly of Brownian motion. Let X_t be a stochastic process, then the infinitesimal generator A acting on nice (e.g. bounded, twice differentiable) functions f is defined by...

Not wanting to be guilty of thread hi-jacking I'll start a new one. This design is in the start of assembly stage, but i will not engage it until i have a few more answers, but i do have all equipment, except for plumbing and fittings, and pressure release valves. The thread by HashsBack...

I'm designing a power assisted bicycle for my senior project in mechanical engineering and I have a few questions about the electric side of the design. I want to attach a small motor to be driven by the rear wheel to generate electricity to recharge the battery. The specs of the motor I was...

Hi, everyone I am new around here and was wondering if anybody could answer some basic questions for me? 1. I was wondering how you would make an electrical connection or for example a direct connect from a battery to switch the electrons to be only negative or only positive. 2. If you...

how can you build a device that can produce radio waves?

Regarding to physical size of national power systems, rate of power exchange and transmission lines capacity are increased by using of high voltage technology. Step up or generator transformers increase the produced voltage of power generators in great power plants. Therefore it seems the unique...

I was wondering if there was a more efficient way of generating sudoku puzzles. I already have a method to create puzzles of varying difficulties that goes something like this: - Randomly generate a completed 9x9 solved sudoku - Randomly remove some of the numbers from the matrix (as...

Hi all, I'm trying to convince myself that momentum is the correct infinitesimal generator for translations. In his book, Sakurai justifies this assertion by making an analogy between the translation operator acting on the ket-space \mathcal{T}(d\mathbf{x}) : \mathcal{H} \to \mathcal{H} ...

Please help me, this is urgent. Anyone who has a sample of design and construction of a cocoshell feed steam generator? or site/s where i can find complete data in the design of the said steam generator?

I've heard that solar water heating is very efficient, almost all the radiation of the sun on the panel is turned into heat. Also heard Stirling cycle generators (where heat flow from hot to cold is turned into mechanical motion and hence into electricity) are also quite efficient. Though by...

What is the rotation transformation generator? What is the Lorentz group generator?

Hi does anyone know of a simple circuit that i can build to generate a ma signal from 0 - 20ma ? using a 9v pp3 or similar there does not need to be a digital indicator on the circuit as i will series the generator with a digital multimeter, i just need to be able to generate a ma signal that...

I need to purchase a generator to run our home. We live in the country so i would like to have enough power to run our lights, Deep Freezer, Side by side refridgerator, pellet stove (only heat source) and cooking stove, hot water heater. Our home is approximately 1600sf. I would like to know...

There was an interesting problem that appeared in POPTOR 2005: A generator consists of a parallel-plate capacitor immersed in a stream of conductive liquid with conductivity \sigma. The surface area of a capacitor's plate is S, the distance between the plates is d. A liquid flows with constant...

Is there any physical law that prohibits the continuous generation of a reactionless torque using a series of gyroscopic rotors?

Hello... new to forum... I am looking into design of a forced air turbine that will drive a generator and flywheel. The flywheel would be utilized for short periods of zero air supply and as an energy resevoir to maintain revs at an optimum level. Dimensions: Turbine/AC generator/flywheel...

I am looking to create a power supply for producing hydrogen. According to claims with a 17-22Mhz signal going into stainless steel plates spaces 1mm apart you can achieve huge output with only 12V input (car battery) my attampts at crating the power supply have failed the setup i tried using...

This is my first post here so hello to anybody who reads this! I just finished calculus based physics II this semester and there are a few things I want to design and make for myself to help better my understanding of what I learned in physics. One is device I have seen that generates an...

I have a question in relation to electrical generators, 240VAC 50 Hz. A colleague wants to run a piece of gear that draws around 10A @ 240VAC with a pf of 0.8. He has indicated that running two 2kVA generators in parallel will provide greater ampage output, thus allowing the equipment with power...

Hi everyone, I'm new here. I'm taking electronics engineering at exeter uni and I can't find an equation for my current project. Its to do with max efficiency from a Pelton wheel. I need to know how much torque it will take to turn a motor (used as a generator) from stationary (zero...

From Classical Mechanics by Taylor: "The Compton generator is a beautiful demonstration of the Coriolis force due to the Earth's rotation,... A narrow glass tube in the shape of a torus or ring (radius R of the ring >> radius of the tube) is filled with water, plus some dust particles to let...

Hi. Given a field F and the space of polynomials over it, F[x], I was wondering why it is that the monic generator of the ideal generated by any two polynomial f, g from F[x] is exactly the gcd of f and g. Thank you! Kriti

im working on my senior design project and was looking for some help in designing a square wave generator that outputs a 32khz, 5Vpp square wave. i found a site that shows a circuit http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/square.html but when i connect the circuit for some...

as part of an engineering project I am doing i have to briefly discuss RTGs and i would like a reference other than wikipedia to put in my bibliography. can anyone direct me to a good book or journal article which describes the design, function etc? thanks a lot

Hello all, I have to design a hand crank generator to produce power for some downstream application. The amount of power is on the order of that needed for anything between a heavy-duty flashlight to one of those desktop mini-fridges that hold one soda can. Thing is, I'm drawing a blank on...

Homework Statement An alternating current electrical generator has a fixed internal impedance R_{g}+iX_{g} and is used to supply power to a passive load that has an impedance R_{g} +iX_{l}, where i = \sqrt{-1}, R_{g}\neq 0, and X_{g} \neq 0 . For maximum power transfer between the generator...

Homework Statement Let a be a generator of F_q Prove that a^i is a generator if & only if i and q-1 are relatively prime. Homework Equations a is a generator of F_q means that a^(q-1) = 1 and a^i cannot be 1 for all i not q-1. relatively prime means that gcd(i,q-1)=1 fermats...

Just quickly, what is a generator in a group? I have a question: "Give an example of an element in (Z_28,⊕) which is not a generator." Cheers,

I have a 3 year old ( Chinese) Amico 3300 watt generator run by a 200cc gas engine. The engine works well and the generator turns but no juice is produced. Circuit breakers (110 & 220)are on. I don't have a manual for troubleshootin and distributor is not helpful. Where do I start, to determine...

I've had this question going in my mind for probably half a year, but I just have not had time to think about it too closely, so maybe someone with experience can help me. With a DC generator, it's torque is proportional to the current flowing through the input terminals. Basically the...

Hello, How can I increase voltage and current from a function generator and still keep an accurate waveform? I want to provide AC power to an electromagnet but my function generator does not have the power to drive it. Any help will be greatly appreciated. Thanks

I'm trying to connect a signal generator as in the following configuration, my signal generator has an output port that i can connect to the capacitor in the diagram on a prorotype breadboard but what about the connection to the 3R3 resistor and DC supply? is there a special wire that goes from...

Although I am comfortable with three-phase circuits in general, visualizing the three-phase AC generator is giving me some problems. I understand that windings are placed 120 degrees apart, but that's about it. Would anyone happen to have a good animation/picture of a three-phase AC generator...

Homework Statement Hi, I made a eletric generator by connecting 3 motors (R/C car motor) to a spinning wheel. Each motor can generate approx 3 volts, it can generate approx 7.5 volt when I connected them in series. When I connect a motor output (approx 3 volt) to a flashlight light...

Just though you would find this interesting: http://random.irb.hr/index.php

http://www.collegeboard.com/student/pay/scholarships-and-aid/23619.html I'm going to be entering into that (^^^) competition with one other person. We are going to be doing it on an MHD generator and its use for automotive transportation and as a home generator, amoung other uses. We are just...

Homework Statement 1. Motor/generator. In the bar and rail problem shown in Figure 1, the bar moves at a constant velocity of 6 m/s to the right. There is uniform magnetic field of 0.75 T oriented downward, as shown, in the space between the rails. The mass of the bar is 500 g, and the...

sir i am tying to make a wind electricity generator, but i am confused about selection of material that i have to use for the project. can hysterisis loop help me? how? what the graph will show to me? please explain. the use of steal magnet will make my generator light and more efficient or...