Threads Tagged with charge Thread / Thread Starter Last Post Replies Views I have read some fairly vague descriptions of charge that say it can be looked at as the amplitude for a particle to... T 10:01 PM WannabeNewton 1 56 General Physics Is there any explanation about the nature of electric charge? Everyon currently knows that an electric charge has... T 08:29 AM DaleSpam 9 321 General Physics Hi everyone, I'm having a little difficulty trying to calculate the self-energy of a uniformly charged sphere of... Y 07:50 AM vanhees71 1 134 Classical Physics To write the uniform charge density of a disk with radius a in cylindrical coordinates, If we do this form: \rho... Mar6-14 08:53 AM dauto 5 122 Classical Physics 1. The problem statement, all variables and given/known data A very long solid cylinder of radius R = 4.2 cm has a... Mar5-14 11:02 PM TSny 6 148 Introductory Physics Homework Charge on metal sheet ( 1 2 3 ... Last) 1. The problem statement, all variables and given/known data There are two big, same size, uncharged metal sheets in... Mar5-14 01:14 PM rude man 64 1,001 Introductory Physics Homework 1. The problem statement, all variables and given/known data Find magnitude and direction of F of a charge moving... Mar3-14 11:16 AM rude man 3 149 Introductory Physics Homework For when there is a negative test charge: The work done to get from infinity to r would be negative, corresponding... Mar2-14 01:02 PM sophiecentaur 2 179 General Physics do negative charges in electric fields of positive charges have negative electrostatic potential energy? am I write in... Mar1-14 06:48 PM dauto 1 152 General Physics My E&M professor brought up this problem of considering a uniform charge density, rho, that is infinite in volume and... Feb28-14 03:18 PM dauto 3 188 Classical Physics If we consider a perfect relativistic fluid it has energy momentum tensor T^{\mu \nu} = (\rho + p) U^\mu U^\nu +... Feb27-14 06:53 PM TrickyDicky 15 324 Special & General Relativity I just have a quick question, and I'm guessing the answer is no but I wanted to make sure that this was sensible. In... Feb27-14 10:49 AM clem 2 157 Classical Physics 1. The problem statement, all variables and given/known data This is not homework but it's kind of similar so may be... Feb25-14 08:57 PM Simon Bridge 3 172 Advanced Physics Homework Suppose you have a system of charges on the xy plane. Am i correct in saying that the place where you have zero... Feb25-14 06:44 PM Redbelly98 2 182 General Physics 1. The problem statement, all variables and given/known data Three small metal solid uncharged spheres are put on... Feb25-14 03:12 PM haruspex 8 191 Introductory Physics Homework 1. The problem statement, all variables and given/known data Two charges are seperated by a distance of 17 m. The... Feb24-14 05:24 PM BOYLANATOR 5 154 Introductory Physics Homework A comb run through dry hair attracts bits of paper. What happens if your hair is wet or it is a rainy day? I guessed... Feb24-14 05:21 PM NascentOxygen 1 160 General Physics I have a general gauss' law/electric field question. In calculating the electric field of a cylindrical shape,... Feb24-14 01:59 PM Meir Achuz 2 186 Classical Physics 1. The problem statement, all variables and given/known data There are three parallel identical planes of area A =... Feb24-14 01:35 PM Rugile 11 179 Introductory Physics Homework An electric charge produces a Coulomb electric field: E = dqe r/r3 A current element produces a Biot-Savart... Feb24-14 09:38 AM Harrisonized 2 145 Classical Physics "Antimatter gravity could explain Universe's expansion:" http://phys.org/news/2011-04-antimatter-gr...-expansion.html... Feb20-14 07:20 PM Bill_K 21 2,413 High Energy, Nuclear, Particle Physics 1. The problem statement, all variables and given/known data The diagram shows the electric field lines surrounding... Feb19-14 09:31 AM P1nkButt3rflys 2 422 Introductory Physics Homework Say, i have two concentric shells,each carrying a different charge.If i connect an ideal, resistance less wire between... Feb17-14 05:27 PM Nugatory 10 270 Classical Physics 1-If we had a spherical capacitor and the voltage across it is 1000 V, I need to know the charge on every plate, I... Feb17-14 01:53 AM abdo799 8 364 General Physics 1. The problem statement, all variables and given/known data There are 4 charges in the corner of a square with the... Feb15-14 09:46 PM haruspex 10 231 Introductory Physics Homework 1. The problem statement, all variables and given/known data Question: is the charge sum an approximation? 2.... Feb14-14 04:48 AM Borek 1 176 Biology, Chemistry & Other Homework The electric potential immediately outside a charged conducting sphere is 200 V, and 10.0 cm farther from the center... Feb13-14 10:32 PM Simon Bridge 8 229 Introductory Physics Homework Let say we have charged conductor M and we know its potential energy function Vm(r) when M is isolated from any... Feb12-14 08:44 AM UltrafastPED 6 205 Classical Physics 1. The problem statement, all variables and given/known data A point charge q is moved inside a hollow charged... Feb11-14 02:33 PM haruspex 5 215 Introductory Physics Homework 1. The problem statement, all variables and given/known data Three charged particles are placed at the corners of an... Feb11-14 01:57 PM Doc Al 1 214 Introductory Physics Homework 1. The problem statement, all variables and given/known data A solid non conducting sphere of radius R=5.60 cm has a... Feb11-14 02:42 AM voko 6 155 Introductory Physics Homework 1. The problem statement, all variables and given/known data The problem that inspired the upcoming... Feb11-14 12:03 AM ehild 2 166 Introductory Physics Homework 1. The problem statement, all variables and given/known data A large, thin plastic disk with radius R = 1.1 meter... Feb10-14 08:45 PM Goddar 3 174 Advanced Physics Homework 1. The problem statement, all variables and given/known data A Geiger tube contains a long thin metal wire,... Feb10-14 03:53 AM Lee33 6 244 Introductory Physics Homework Hi everyone, i am just wondering why I cannot find a list of Charge Conjugation and Parity numbers for all the... Feb10-14 01:40 AM grzegorz19 3 563 High Energy, Nuclear, Particle Physics 1. The problem statement, all variables and given/known data Two identical conducting spheres, fixed in place,... Feb9-14 08:11 PM NascentOxygen 4 179 Introductory Physics Homework 1. The problem statement, all variables and given/known data Figure 23-37a shows a narrow charged solid cylinder that... Feb9-14 11:03 AM jackarms 1 221 Introductory Physics Homework Hi, as I understand it, in hydrogen with its electron in the p-orbital there is a charge polarization (negative in... Feb9-14 07:51 AM xortdsc 2 262 Quantum Physics 1. The problem statement, all variables and given/known data The figure below shows a finite line charge with... Feb8-14 03:05 AM andylie 2 223 Introductory Physics Homework i need to use as a portable charger(POWER BANK) for my mobile can i use LM7805 to deliver my rated output ! please... Feb7-14 04:58 AM sophiecentaur 26 583 Electrical Engineering