What is the electrical resistance of saturated salt water?
960010
about 17,600 Micro Seimen at 10,000 parts per million and 25 degrees C.
740924
Dead Sea ..  with salinity of about 30%. This is about 8.6 times greater than the average ocean salinity.
726534
When salt  ( NaCl ) dissolves in water, it becomes Na+ and Cl-, or, atoms called "ions".  It's these ions that carry the electrical charge.  The higher the concentration of these ions, the more conductive the solution will be.
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.
26128
http://pictures.ask.com/pictures?q=salinization&qsrc=31&o=0
36210
water is Di pole material which means that it has some polarity due to partial charge distribution between oxygen and hydrogen . \n\nsince it is a di pole , it is divided into ions as \n\nH2O = OH-   + H+\n\nor it accepts an H+ and becomes  H20 + H+   = H3O+  \n\nso it seems like ions are the main thing to carry electrical current . so water can curry current providing a power source \n\n\nPURE WATER CANNOT HOWEVER CARRY ELECTRICAL CURRENT
1001225
"gods_my_ruler" obviously has NO IDEA what he is talking about.\nOf course you can, easily split H2O into H2 and O2 gas through a process known as "electrolysis".  Actually, 12 volts is way over the minimum voltage required to electrolysize water.\nYou will also, of course, need to use some form of electrolyte (commonly, "salt", or Na/K Hydroxide are popular choices) in order to help the water conduct electricity since pure water does will not conduct at all.\n\nBut you question was about controlling the current flow.\nI assume you are having problems with the current getting too high and overloading your power supply?\nFor starters, I would downgrade your power source to something with a little less voltage if possible.\nYou can also use combinations of small (on the order or just a few ohms or less) resistors wired in series/parallel in order to give you just the right resistance you are looking for in order to decrease the current through the cell.\n\nWithout more specifics about the problem you are having, that is about all the advice I can give for now.\n\nRemember, it is not the voltage that controls the H2 production rate, it is the current.\nAccording to Ohm's Law,\nV = R*I\nso a higher voltage (with a given resistance) does mean a higher current, but the same goal could be achieved with a lower voltage and much lower resistance.\n\n\nEDIT:\nIn reply to "kurticus1024",\n\nUsing a reostat or variable resistor would work to dynamically control the resistance in the circuit, and thus the current through the cell, however, most reostat which I am aware of have a high minimum resistance (i.e.  even when turned all the way to the minimum setting, they are far from zero ohms) so by doing this, you will be DRAMATICALLY increasing the resistance through the cell and intern virctually cutting your cuttent to just a few miliamps.  A few miliamps is fine for many common electrical components whcih the reostat was designed for but if you intend on produce Hydrogen, you are going to have to wait a VERY long time to get any sizeable amount.
226812
Wouldn't that depend on the amount of salt in the water? Or are you talking specifically about fully saturated water?\n\nThe viscosity of water is 0.890 × 10^-3 Pa*s.\nThe viscosity of our ocean is 1.002 x 10^-3 Pa*s.
884983
Salt (or more specifically, Sodium Chloride salt) is a strong electrolyte, meaning that when dissolved in water it will completely break up into ions (Na+ and Cl- ions).\n\nPure water, by itself, does not conduct electricity, but when you dissolve an electrolyte in it, an electric current can pass through the solution.\n\nIn order for a electric current to flow there must be charge carriers which can move.  Pure water does not have these charge carriers, but after a salt is dissolved and ions are present in solution, the solution becomes conductive.
581638
Galvanic corrosion tends to occur when dissimilar conducting materials are connected electrically and exposed to an electrolyte. The following fundamental requirements therefore have to be met for galvanic corrosion:\n\n   1. Dissimilar metals (or other conductors, such a graphite).\n   2. Electrical contact between the dissimilar conducting materials\n      (can be direct contact or a secondary connection such as a common grounding path).\n   3. Electrolyte (the corrosive medium) in contact with the dissimilar conducting materials.\n\nWhen placed in an electrolyte, different metals/alloys assume different corrosion potentials (refer to the galvanic series in seawater). It is this potential difference that is the driving force for galvanic current flow. The less noble material in the galvanic couple will become the anode and tend to undergo accelerated corrosion, while the more noble material (acting as a cathode) will tend to experience reduced corrosion effects. However, in some cases, chemical species produced at the cathode can degrade certain cathode materials.\n\nIt is not only the potential difference that controls the magnitude of galvanic current flow. The total resistance to current flow (see schematic of a simple corrosion cell, with both arrows showing conventional current direction) also needs to be considered, which can be broken down further into the following individual resistance components:\n\n   1. Resistance to (ionic) current flow of the electrolyte.\n   2. Resistance to current flow (by electron conduction) in the conducting materials and in the connection between them.\n   3. Resistance associated with polarization behavior of the anode.\n   4. Resistance associated with polarization behavior of the cathode (cathode efficiency).
654396
Pure water, H2O is a terrible conductor of electricity, however, water that has hard water deposits and other impurities in it is a great conductor
335686
Depends on what is meant by *purified*.\n\nIn the absence of minerals in the water, it does not conduct electricity properly.\n\nI made a science project where a light bulb was plugged into the MAINS by means of two wires, and one of the wires was split and had a pyrex bowl filled with destilled water placed in between the two leads. The bulb did not light. I started emptying salt into the water and stirred with a wooden spoon. After a short while, and as the solution became more and more uniform, the bulb would slowly light up.
88784
when the salt in in the water, it contribute ions in the water. and ions will conduct the electricity. the salt tester will test the electricity in the water, therefore, the salt compound will be measured
224956
For any kind of electrochemistry to occur, there should be electrolytes present in the fluid to transfer charges.  This is why salt water is more corrosive.
1045950
Electromagnetism and gravity. I have had success divining for water. Try it: Take a steel coat hanger and cut the long side in half. Make a cut on the other 2 sides  that same length. Bend until you have 2  L-shaped pieces. Stroke one side of each  L with a good magnet. Hold both pieces lightly as if you were holding 2 pop cans, tilting slightly away from you. As you walk over a water source, water table, well or buried pipe the two L's will move to point to each other. Use caution, this also works to locate underground live power lines.                        The REASON this works is that everything in our physical environment has an energy level. When there is a difference in density or materials, then resistance is created and this can be electromagnetic resistance. Underground water is electrically conductive and carries a faint electromagnetic charge that the magnetic "L's" tend to align with. I hope that explains it better, I'm glad you were able to find a good spot for your well.
445036
Try here:\n\nhttp://www.saltwateredge.com/PROD/SG5C/YOZ01
282805
in order to conduct electricity, the water (or any liquid really) must have some charge carriers in it.  These charge carriers are atoms that have ionized, that is, have become charged either positvely or negatively.  plain water, like from the tap, has very few charge carriers in it, but it does have some and will conduct electricity.  Adding salt to tap water increases the amount of charge carriers because the salt ionizes.  so salted tap water is a better conductor of electricity that plain tap water.  sea water already has plenty of salt in it, so it is a good conductor also.\n\n(a little known fact is that if you have completely pure water, it will not conduct electricity very easily, if at all.   I'm not sure how available pure water is.)