0
Because it is normally carrying alternating current which is alternating between positive and negative at 50 (60 in the US) cycles per second (hertz). Since the other end of the supply transformer is connected to earth at the substation the live wire is "live" with respect to earth. Usually it is used in conjunction with the neutral wire which is really just another earth at the substation.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Do you connect a fuse to the live wire or the neutral wire?
You connect the fuse to the live wire as it is the one with the potential difference of 220V and in case of short circuit current will blow out here
Where is the positive wire on reverse light?
The wire leading to the bulb socket is the positive (+) wire. The vehicle body and frame acts as the negative (-) part of the circuit.The wire colour codefor positive is the green black one
Why does a battery snap have a red wire and a black wire?
Red wire=positive Black wire=negative
Which is positive and which is negative out of red wire blue wire white wire and black wire which go to positive?
When working with DC (direct current) voltage, IN GENERAL, red is positive and black is negative. But the reality is, a manufacturer may select different colored wires to represent different things, and it is entirely up to the manufacturer to make those decisions.But since this question is under the heading, "Home electricity", you may have asked the wrong question, since home wiring is AC (alternating current), and there is no such thing as a positive or negative wire.
Are positive wire and hot wires the same?
yes
Before you touch a wire in an appliance how should you make sure that it is NOT hot?
You can use a wire tester to determine if a wire is live. You can also touch the positive wire on the ground wire, if the wire produces a spark it is live.
How do you wire a coil on a 1976 ford truck?
positive wire is the live wire it goes to the + term ground goes to - term
Why does the current in a live wire remain positive even when the current may be an ac souce?
I don't think it will. If the source is AC, the live wire will alternate as well.
Do you connect a fuse to the live wire or the neutral wire?
You connect the fuse to the live wire as it is the one with the potential difference of 220V and in case of short circuit current will blow out here
97 Mercury mountaineer-you want to add air hornWhat wire do you hook the positive air horn wire to?
positive wire to another positive wire
What is an circuit test screw driver?
It is a screwdriver that has a light in the handle. When the tip of the screwdriver is touching the positive wire on an electrical socket, if it lights up when a finger is placed on the top of the handle, the positive wire is live.
What is positive wire?
Positive wire is red, at least on automobile batteries.
How do you get -48v DC?
In a 48V DC system you ground the positive to 0V so the live wire will be -48V.
How do you tell a positive speaker wire from a negative speaker wire?
The positive speaker wire is a solid color, your negative wire should have a stripe on it.
Were can you find a free wiring diagram for a 1997 Chrysler lhs?
1997 Chrysler LHS Auto Alarm Wiring GuideBattery Constant 12v+ Positive Wire (+): Pink/Black and RedBattery Constant 12v+ Positive Wire Location: Ignition Switch HarnessStarter Positive Wire (+): Yellow/Gold DotsStarter Positive Wire Location: Ignition Switch HarnessIgnition Positive Wire (+): Dark Blue/Gold DotsIgnition Positive Wire Location: Ignition Switch HarnessSecond Ignition Positive Wire (+): Red/White/Gold DotsSecond Ignition Positive Wire Location: Ignition Switch HarnessAccessory Positive Wire (+): Black/OrangeAccessory Positive Wire Location: Ignition Switch HarnessSecond Accessory Positive Wire (+): Black/WhiteSecond Accessory Positive Wire Location: Ignition Switch HarnessParking Light Positive Wire (+): Black/YellowParking Light Positive Wire Location: In Drivers Kick PanelPower Door Lock Positive Wire (+): Orange/WhitePower Door Lock Positive Wire Location: In White Plug, Back Of FuseboxPower Door Unlock Positive Wire (+): Pink/VioletPower Door Unlock Positive Wire Location: In White Plug, Back Of FuseboxDoor Trigger Wire: Tan (-) And Tan/Red (-) Use Both. When connecting an alarm system, the tan (-) is for the driver's side and the tan/red (-) is for the passenger's side use both wires and diode isolate.Door Trigger Wire Location: In Drivers Kick PanelDomelight Supervision Wire (-): Tan (Requires Relay)Domelight Supervision Wire Location: In Drivers Kick PanelTrunk Release Positive Wire (+): Black/White (Requires Relay)Trunk Release Positive Wire Location: At Trunk Release SwitchHorn Negative Wire (-): Black/RedHorn Negative Wire Location: At Relay In FuseboxTachometer Wire Negative Wire (-): Red, White Or BlackTachometer Wire Negative Wire Location: At Ignition Coil PackBrake Light Positive Wire (+): WhiteBrake Light Positive Wire Location: At Switch Above Brake PedalFactory Alarm Disarm Wire (-): Light Green/OrangeFactory Alarm Disarm Wire Location: In Either Kick PanelFactory Anti-Theft System: N/AFactory Anti-Theft System Location: N/A
Where is the positive wire on reverse light?
The wire leading to the bulb socket is the positive (+) wire. The vehicle body and frame acts as the negative (-) part of the circuit.The wire colour codefor positive is the green black one
What is the wire not the positive terminal wire coming out of the 1993 FXR starter called?
I call it the flag terminal - Its where 12v goes into the starter when you hit your start button
