Q:How do I tell which wire is positive and which wire is negative on the door speakers and the rear speakers?

The one with stripe is negative.

Q:I just read an article about a man who was electrocuted by a live overhead wire while trimming a tree. Horrible. My question is I see squirrels running on all the overhead wires. How do they not get electrocuted?

Electrocution happens when electricity finds a way to ground. Squirrels are not grounded so they don't get shocked. Ever watch the Discovery channel? They've shown how the power company works on high voltage lines without shutting the power off. A helicopter hovers next to the power line while a technician reaches out to the power line with a probe. Once contacted the helicopter and the technician are at the same potential voltage so nobody gets shocked. However, during approach they are NOT at the same potential. That's the reason for making contact with he wire with a probe first. So that the technician doesn't take a big hit when he first touches the live wire. So squirrels, birds, rats - anything that can land on the wires doesn't get electrocuted. But if an animal touches the wire AND ground (or another wire), it's all over in a blinding flash. Hope this helps. 'av'a g'day mate. '')

Q:Its the wire that goes up to the antenna,its flat,and . brown in colormaybe their is a tool that can be purched

Maybe but you can just use a sharp knife. Take your time because the wires cut easy too.

Q:Some states allow the use of aluminum wire in houses in place of copper. If you wanted the resistance of your aluminum wire to be the same as that of copper, would the aluminum wire have to have a greater diameter than, smaller diameter than, of the same diameter as the copper wire? Calculate the thickness ratio of aluminum to that of copper.

Are you using 12 volt batteries to do this..?

Q:The black wire is called ground but what is the red wire called?

In single phase AC circuits it's hot (ungrounded). In three phase AC circuits it's A phase. In DC circuits it's positive.

Q:We added an AC to a preexisting sx 80 furnace and we are having a hard time wiring the new thermostat to the furnace, and the condensor to the furnace. Anyone know how to get a wiring diagram?? thanks

Onewire Armstrong

Q:What are the range specs when testing resistance on your spark plug wires ?

Spark Plug Wire Resistance

Q:i need to know how much wire size i have to put for 380 volts supply

Wire size is a function of current, not voltage. So, how much current is your load going to draw.

Q:Im wiring my pioneer deh x3600ui to my pontiac grand am gt 2002 directly without a factory harness. Any diagrams out there i can use? The red wire on my pioneer is for the ignition but i cant find that wire on the pontiac.

if u cant find a diagram u can always check the speakers for the colors of the wires and then just try to get a hold a cheap little voltage meter like the one below just to find ur ground, remote, and battery wire.

Q:Two current-carrying wires are lying right on top of each (at a right angle) other, with currents flowing in the wires in the directions pointing up for the vertical wire and to the right for the horizontal wire. The horizontal wire is fixed and does not move. What happens to the vertical wire?Choices:It moves out of the pageIt rotates clockwiseIt rotates counter-clockwiseIt moves to the leftIt moves to the rightIt moves into the page

The vertical wire rotates (clockwise ?) Draw the situation where you are looking directly at the 'end' or the horizontal wire with the current coming towards you .. the magnetic field from this current is a set of concentric circles with counter- clockwise direction (using the screw-cap rule.. turn counter-clockwise to move cap towards you as it loosens). Now place the vertical wire in this field (close to horizontal wire) and apply Fleming's left-hand motor rule to find the direction of force/motion for the upward current. Above the horiz wire .. Field (first finger) points left, Current upwards (second finger), Motion/force (thumb) direction is towards you. Below the horiz wire .. Field right, Current upwards, Motion/force (thumb) direction is away from you. Seen from the side this gives the vertical wire a rotation in the vertical plane .. which way depends on which side you view it from. ('conventional' viewing would give a clockwise rotation)