Q:my portable HD has 2 USB cables, one for the computer and one for power... why?

Because it needs more power than the standard 5V the USB normally gives.

Q:i bought a car from some guy.he had 2 amps but he took out onehe had the power cable running from one amp to the other. i just recently bought another amp and i was wondering if its safe to do this.he said it was working fine.he was powering 2 10 subwoofers.thats what im planning to do

its safe but its better to run 2 separate wires due to you are wanting to use more power and one wire has a max load that it can handleyou run 2 and you will have more power to each amp

Q:i just bought a cobra radar detector and im a bit of a perfectionist. it bothers me that the power supply cable drags from the windshield across the head unit and into the cigarette lighter. i need ideas on how to hook up the detector because it needs to be plugged in to work but not have the cord out in the open. thanks

Mount the detector on your sunvisor. Run the power cord fromt eh detector under the edge of the headliner and down the A-pillar next to the windshield (you should be able to remove the plastic over the A-pillar and run the cord behind it.) Cut the cigarette lighter plug off and wire it into the fuse panel to a switched 12v source (something that comes on when the car is cranked)(radio, etc). That will allow the radar detector to power on when the car is cranked and to power off when the car is stopped. I wired all of mine like this and never had any problems with any of them.

Q:or do I need to buy one?

No, the PS3 is a 3 prong outlet cable, and the PS2 is 2 prong. Also the end that plugs into the console is different for both. You can use a PC power cord for the PS3 if needed, the ends are the same.

Q:today i purchased a used audiobahn atb10at 10quot;subwoofer with a built in power and for my car but there was no cables for it, the power is a six prong plug and i was wondering if anyone could tell me what the specific name of this cable is or where i can buy it and maybe how to install it, i tried looking into it and didnt get anywhere thanks

Audiobahn Atb10at

Q:Why is an aluminium and iron mixture used for power cables ?Please could I have a detailed answer, as detailed as you can make it.Thankyou x

The cables have some few steel wires for strength, and many aluminum ones to carry the current. THey use aluminum instead of copper because it is a lot cheaper and much lighter.

Q:Our comcast HD cable box usually has the time and a little red light on front. Its blank and has no power. It is plugged into a power strip that also has the TV and stereo, yet those are working fine. We reset the power strip and still no power to the cable box.Any ideas? Please no rude remarks. Thanks.

Check your cable bill. You are most likely renting the cable box. If so then take it back to Comcast. They will exchange it for a working one. One of mine did that not too long ago, and I had no hassles exchanging it.

Q:Electrical equipment installation project "power cable laying" cable cross-sectional area refers to the cable cross-sectional area, or refers to the copper core cross-sectional area, such as 3 × 25mm2 refers to 25mm. 75mm2 or cable cross-sectional area of 490mm2? More

Said cross-linked polyethylene insulation, double steel armor, PVC outer jacket. Voltage level 0.6 to 1 kV, 5 core, cross section 10 square millimeters. About four centimeters in diameter.

Q:How to distinguish between power cables and electrical wiring on drawings

Cable ends should be marked with cable head symbols, the middle line should also be different from the ordinary wiring. Bv at the beginning of the general wire, with YJV or vv is generally a cable, but not limited to these

Q:So i left my xbox on over night (i know i know) and during the night there was either a power outage or surge, cuz all the electronic clocks had been reset. So i went to my xbox, and the light on the power cable box was red and my xbox wouldnt turn on. I havent tried unplugging it yet cuz the wires are behind my tv and a pain in the *** to get to, but i have a feeling this wont help.do i need to get it repaired?

Disconnect everything except for the wires behind tv and also remove xbox 360 hard drive and insert back Connect everything back in place. The problem should be fixed If problem still keeps happening then its a sign of getting a new power adapter(cable box) For any more questions about xbox 360 feel free to ask