Do electrical fields created by power lines effect us?
336060
Yes they do, if there were no power lines and no electical fields you would not have asked this question therefor the powerlines have not only effected you but in this case have also effected every member here who reads this and respondes to this its called chaos thoery.  And if this doesn't answer your question at least it will effect you *lol* :D
721078
All electrical storms can effect telephones and computers. Surge Protectors can save a life through a storm. If this storm is local to you, I'd sign off, relax and wait for the storm to pass. Better to be save than sorry. To be sure, to be sure
616514
Generating static electricity.
853399
Answer:\nThe birds sit touching only one line and nothing else through which electricity can flow to the ground. This means no current flows through the bird’s body.\n\nSo can I get electrocuted if I touch a power line?\n\nAnswer:\nYES!!! And here is an example to explain why.\n\nYou are out flying your kite and it gets away from you. The kite ends up in the power lines. No harm comes to the kite, much like the bird. But once you get involved in trying to recover the kite danger occurs. If you use a pole of some sort to knock the kite down, the pole becomes a conductor of electricity. When the pole touches the kite, the current flows through the kite into your body and then to the ground. Your body cannot handle such a massive shock and can result in death.
424835
(m)\n\nIn large computers, neutral to ground voltages are originated because nonlinear currents flow through the neutral wire. In general always when there is some current flowing in neutral wire, there will be a ground ot neutral wire voltage difference on output end, because there is no current flowing on ground wire. In some computer systems the voltage differences are considered to be problem, because it has been reported to cause cause improper behaviour like "hangouts" on some computer systems. \n\nIt is true that in some special cases neutral to ground voltages can cause this kidn of problems, but in those cases it is not to blame the separate wires, because the problem lies in some other place. In properly built electrical wirign network, the neutral to ground voltage differences will never be more than few volts and any properly designed electrical equipment should not be disturbed of this kind of small voltage differences. \n\nIf the equipment gets disturbed of this small main frequency voltage, claim the manufacturer/designer of that particular equipment for doing bad job. Computer equipments can be easily deigned to cope few volts of voltage differences between neutral and ground. Most of the modern euquipments are designed to cope this. \n\nIf the voltage difference between your neutral and ground is much larger than few volts or there is very good propability that there is somethign wrong on you main wiring. So it is best that an electrician goes and checks your wiring before more problem and damages happen. \n\nIn some cases the neutral actual to ground voltage is not the problem, but the wavefor of the voltage. Non-linear loads like computer power supplies and light dimmers can cause some considerable noise between neutral and ground. Such noise can be more problematic than just a simple voltage difference, but equipment should still be able to cope quite fair amount of it (EMC regulations etc.). If you have considerable amounts of noise on neutral wire used by nonlinear loads, then you can again blaim the improper design of the electrical wiring. This kind of problems can be solved by good wiring design practices: separate electrical wiring from main panel/transformer to the equipments which cause noisen and to equipments which are sensitive to it. This is good practice and keep problems away. \n\nIf you would have on those cases had a wiring with common neutral and ground wire, you would have terrible ground potential diffeences between different outlets. In cases were ther problems neutral to ground voltage differences in separate ground and neutral wire wiring start cause problem, a wiring with common ground+neutral wire there would be so much ground potential differences between outlets that any equipments connected to different electrical outlets and interconnected would work very erratically, you would propably cause many equipment damages. Computer sustems are generally much more sensitive to the ground potential differences than ground to neutral differences. \n\nThe bottom line is that separate ground and neutral wire is a good thing for many problems. It solves more problems that what it potentially causes. And in wery rare situations where separate ground and neutral wires cause some problems, in those same situations a wiring with connon neutral+ground wire would have caused much more but different kind of problems in form of ground potential differences. When taking account situation where computers are interconnected/networked, a good stable ground potential for aal equipment is much more important than very small neutral to ground potential. Separate ground and neutral wires is a good method to keep the outlet grounds at same potential, which is very important in networked computer systems.
680198
Your concept of the linesman is correct, however, being immersed in a body of water is dangerous.  Lightning carries a far greater potential than that of what the linesman faces.  True, there is no conduction of current to ground, but the copter and the line must be equalized before contact can be made.  This is because of the state of "STATIC ELECTRICITY".  Energy that is "Static" is not moving.  Nevertheless, when it comes in contact with another object, one who's energy level is at a different potential, the energy no longer remains static.  The sudden rush of current will be felt.  That's why when you cross the rug and grab the door knob you get a shock.  You have a significantly higher potential than the door knob and when you touch it there is a rush of energy trying to equalize the differences.\n\nBeing in a pool at essentially zero volts and a crack of lightning hits close by, the ground and the water in the pool will charge up before dissipating the lightning strike, possibly leaving you dead.  Wouldn't that ruin your day?\n\nDuring lightning storms stay out of the pool or the tub, do not be running the sink and stay off the phone (cordless phones do not apply in this case as there is no direct wiring to the outside world).  There have been documented cases where persons on the phone have been struck in the head by lightning, again it's due to that equalization of energy levels thing.\n\nHey, even if everyone is wrong, wanna risk your life?  You could die in a tub if someone dropped something electrical in the water.  True, your assumption is that water conducts better than the human body, but that is a wrong assumption.  Pure water is an insulator.  It's the impurity in water that makes it conduct.  Our bodies are actually much better conductors of electricity.  Don't believe me?  Ask someone like an electric shop teacher.\n\nI hesitate to give you a test to try because of the danger of electrocution, but if I were at your house I could demonstrate in a matter of seconds that what I am saying is true.  But for the sake of not causing someone to try a potentially dangerous experiment I'll not be specific.\n\nHowever, if you must know, e-mail me and we can chat.  When I am confident of your ability to conduct the test safely then I will tell you how to do this.
606935
any wire can carry a charge, and a thunderstorm can hit any wire outside your home.... so if your computer is connected to 1) a power outlet or 2) any other wire such as phone or broadband, there is a risk that lightning will hit the right line outside and send a gigantic current to your computer (destroying it)... so yes, unplug your pc completely (leave the keyboard and mouse...)
830503
I assume you're thinking of the kind of EMP that would result if an atomic bomb were detonated overhead, or if some sort of electromagnetic weapon were used in warfare.  The answer is that such an EMP will destroy electronic devices, whether they are operating or not.  The magnetic pulse induces a voltage in the conductors of the circuitry, which causes high currents to destroy semiconductor devices.
691721
Electric field lines are a convenient way to sketch an electric field, but in real life, the field is continuous and exists in every direction.\n\nThe lines do not cut each other because they join points of equal field strength, like isobars on a weather map or contour lines on a relief map.\n\nThe lines will never cross because each line represents a specific value, and field strength decreases steadily as you move away from the source.  Crossing lines would mean that there is a point where the field strength is two values at the same time, which is obviously impossible.
349740
Yes the electricity sparks can cause an explosion. I read about that a long time ago.
31993
Where ever an electic charge is made to oscillate there will be electic field and magnetic field.\n\nNowadays every one is familiar with cell phones.The cell phones receive the electric and magnetic field produced at the transmitting end.\n\nRadio ,T.V are other examples of receiving electic and magnetic fields.Very very familiar example is the light which we see.\n\n Light is one form of electic and magnetic field. Hence whenever we open our eyes we feel the precence of electic and magnetic field.\n\nAs a crude answer  when ever we see we find electric and magnetic field.
893111
no it is not harmfull however if lightning stikes at your house or a neighbours your electricity will surge therefore damaging everything that is pluged into an electrical socket. \n\nit is not harmful if nothing near you gets struck by lightning!
1105032
The atoms of iron line up with the magnetic field produced by the changing voltage.  This prevents the magnetic field (and thus, electric field) from decresing so quickly  This effect greatly increases the efficiency of the transformer.
71697
Electricity generated by relative motion of a magnetic field and an electric charge.\nMaxwell's 2nd equation states that a magnetic field that varies at a given point induces an electric field that exerts a force on an electric charge.  This force moves the charge.  The free electrons in a conductor are such a charge, and are moved by the relative motion of the conductor and the magnetic field.  \nGenerators and transformers are common applications of this effect.  In a generator the magnetic field may be intrinsically constant (created by DC or a permanent magnet), or varying (created by AC).  The conductor is a coil or set of coils.  No mechanical relative motion of the field and conductor is needed if the field is intrinsically varying.  If such relative motion is needed, the coil can be rotated with the magnetic field held stationary or vice versa, so relative motion of the conductor and the magnetic field occur.  \nIn a transformer the current is always AC and no mechanical motion is needed.  The magnetic field is produced by an input coil (an electromagnet), which shares its core with the output coil for good magnetic field coupling.
463517
the external electric field creates an electric field in the copper. however, copper is a conductor so charge flows within the copper so that the net electric field is 0.
544600
I had a close encounter many years ago, when I was a boy scout and having field camp in school. It happen to be a thunderstorm and I was walking in an open field with an unbrella when I felt my hairs standing on end. Next thing I knew, lightning struck a metal fence some 15 feet away. I was shocked by this, but felt nothing and continued my way to the nearest shelter!\nSo the next time I feel a build up of static electricity around me, I am going to run into the nearest building I can find. Especially on a rainy day.
714990
I believe that part of it is because the lines are covered with a coating that prevents them from being electrocuted. But, I've never been up there, so I don't know for sure.\n\n-EA