Hot is positive.
A table lamp using AC (alternating current) does not have a positive wire, but many will color-code the wires white and black within the circuit. <><><><> As said, no positive and negative, but there IS a hot and a neutral. The hot wire may have ridges running the length of the insulation (or be colored black if separately insulated). The hot wire connects to the brass colored screw, and feeds power to the base of the bulb. Yes, will work if reversed, but is not according to electrical code. White or unridged wire connects to silver colored screw, which connects to the shell of the bulb base.
White is neutral in home wiring. Red is sometimes used in 3-way switches and dimmer applications, so it is likely red is hot in your application if it pertains to home wiring. The term positive would just apply to DC wiring since AC goes positive and negative. For example your car battery has Red as Positive and Black as Negative.
Most likely your "purple" was once black, and is the negative; to verify, trace "purple" to ground, or touch the leads of an ohmmeter to purple and ground. You should get "0" ohms at the correct wire. This assumes a negative ground.
Very literally, hot wire is a wire that is hot. Pertaining to vehicles, to hot wire a vehicle is to start the engine or motor of the vehicles without the use of the ignition.
If you are talking about the wiring of buildings/houses then blue would be a hot with ac current. If you mean wire in electronics then it would also "usually" be a positive but if there is any danger you should never assume. A tester could save you from having to buy a new component or your life.AnswerThe European convention is that blue insulation indicates a neutral conductor, brown, black, or grey insulation indicates a line conductor, and a yellow/green striped conductor indicates an earth conductor.
For an electric water heater on alternating current, there is not 'positive' or 'negative'. There should be terminals labeled hot and neutral, though.
Red is positive, Black is the negative
Negative - (Black) is Ground, Positive + (Red) is Hot. Ground wire goes to Negative (Black) it goes from negative on battery to engine for ground.
No, AC outlets do not have positive and negative terminals like DC outlets. AC outlets have hot and neutral terminals, with the hot being the live current-carrying wire and the neutral being the return path for the current.
Conventionally, the black wire is used for negative voltages. In an automotive car and certain other places like hooking up a car stereo then it would be the negative. The electrical appliances in the house.The black wire would be the hot wire and the white wire would be the negative wire.
No, positive wire and hot wire are not the same. Positive wire typically refers to the wire carrying positive voltage in a DC circuit, while hot wire usually refers to the wire carrying current in an AC circuit. The terms are specific to different types of electrical systems.
In ordinary circumstances, a red wire is a secondary hot wire in an AC circuit, or the positive power leg in a DC circuit. Red should not be used as a neutral. If it is used for something other than a hot wire it must be labeled on the wire at all connection points- and would STILL be a bad idea.
35 ampRefrigeratorRun a hot wire to the positive wire on the radiator fan
YesCaveatIn general, when working with DC, the red wire is positive and the black wire is negative. In the US and Canada, when working with AC, the colored wires (red, black...) are "hot", the white wire is neutral and the green or bare wire is ground.Note that the above is NOT a requirement for "switch legs".
In a DC circuit it is positive. In a 220v ac circuit it's one of the two positive (hot) lines.
A person can hook up a cooling fan to a battery by connecting the hot or positive lead to the positive side of the battery. The negative lead wire is then connected to the negative side of the battery.
Automotive positive and negative wiring colors can be any color, blakc can be hot, white etc, you need a wiring diagram