Electical Definition and 19 Threads

So my question is that if i put other lead of multimeter to my hand and other lead to socket 230 phase wire why it shows 150 volts when i stand at floor and 80 volts when i stand at carpet? what causes those voltages? And yes i know doing that could be dangerous. It also shows weird voltage if i...

See the attached figure. I used 220uF with buzzer and also tried 10uF capacitor but buzzer isn't loud enough. I don't have any 3.3pf capacitor. I used 1.1 pF instead. I also tried changing the resistance of potentiometer but still buzzer isn't sound loud enough.

Is it correct that a salt bridge in a Galvanic cell makes that there is no electrical field between the solutions of the two hallf cells? Does that mean that the electrical potential (I do not write electrochemical potential) between both solutions is zero in an ideal world? Is it also possible...

So I have completed (a) as this (original on the left): I have then went onto (b) and I have equated T(s)=Z(s) as follows: and due to hence Does this look correct to you smarter people? Thanks in advance! All replies are welcome :)

That is, for Supernode -1,3 (12V branch) , we do Nodal Analysis and we have (V2-V3)/2 , over the 2 ohm branch. But this current is not included in the Equation 1 in the solution I have attached(Which is my only source to cross check answers/solution right now.) Is the solution wrong? Thanks...

Problem Statement: Finding the resistance when probed at point bc, cd and da Relevant Equations: Series and Parallel resistance equation derived from kirchhoff's law with application of ohm's law I genuinely don't know what to do on this one. The example our professor made isn't exactly clear...

My project is to create a circuit for a stroller that can store the mechanical work into electrical while moving around and with the push of a switch, use the electrically stored energy to assist the movement of the stroller. I’ve tried capacitors but it ended up not being enough voltage and I...

Homework Statement Figure shows a 50 Hz, high-voltage, transmission line. The relationships between the sending and receiving end voltages and currents are given by the complex ABCD equations: where 'S' stands for sending-end and 'R' stands for receiving-end (a) Given the parameter values...

Hi! I'm about to take my senior year in high school, and I was originally planning on taking electrical engineering plus some extra classes in physics. I like to work with my hands and to create things, so engineering is sort of a no-brainer for me, but it's also very important for me to...

Hi, I am confused about the electric field lines which are depicted mostly on the Internet as per conventional way. What I understand that the conventional current was due to positive charges which was wrong. Actual flow of the current was due to the negative charges or electrons. When the...

I need help in explaining how electric bell uses motor effect.

i am considering learning in the university(technion) for something related to science, i am trying to decide between electrical engineering and materials engineering. also in the field of electrical engineering i saw that there is several routes on the subject in the university i want to learn...

1. I have a car that has some electrical/electronic weirdness; the basic issue is apparently parasitic draw of about 2.5amps @ 12v. When I connect the (problematic) component the chassis ground (connected to battery ground) what I observe is that the battery chassis jumps from 0v to something...

Hey you guys, I'm stuck on something here and need some help. Youve always come through for me in the past I hope this time too. I want to calculate how much current and voltage I can induce in this copper wire toroidal. The toroiodal. 1360 turns of awg 14. .068 average wire dia...

[Solved?] Simple question about amping electical currents Homework Statement I am attempting to build a pocket guitar amplifier. So far this is what I have. http://img174.imageshack.us/img174/6724/dscf0004yf2.th.jpg What you can see in that picture WORKS! The tiny electrical current from...

HI, I couldn't decide which forum was the best to post these in. I have two questions regarding electricity and getting shocked, or electrocuted. 1. Being shocked from the spark plug leads on either small engines (lawnmowers) or cars. Classically, on either of these, you have a coil which...

three small, negatively charged spheres are located at the vertices of an equilateral triangle.The magnitudes of the charges are equal. Sketch the electical field in the region around this charge distribution, including the space inside the triangle. ok..so all i know is that density of field...

A platinum wire having a resistance 4.85 ohms at 20degree C is used to heat a liquid. the resistance of wire 5.97ohms after a cetain time. Determine the temperature of the liquid. please help me to answer this.

hey all here's my problem two spherical drops of mercury have a charge of 1.0nC and a potential of 300V at the surface. the two drops merge to form a single drop. what is the potential at the surface of the new drop? thx anyone for there help