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How does an LED light not light up when a positive wire is on a negative terminal and negative wire on positive terminal?
Wiki User
∙ 8y ago
Because LED means light-emitting diode and the clue is in the diode, because diodes are 'polarised', which means that the current must flow in the correct direction for them to operate correctly.
Wiki User
∙ 8y ago
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Why is it necessary that an electron returns to the positive terminal of the battery each time another electron leaves the negative terminal?
Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.
How do you hook 2 12 volt batteries together together to get 24 volts in a positive ground tractor?
Connect the positive terminal on one battery to the negative terminal on the other with heavy wire and battery clamps. Connect the remaining positive terminal to the metal chassis of the tractor, and run the remaining negative wire to the items to be powered, with any luck at all, through a fusebox.
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 does a complete circuit need to make electrical devices work?
A source of electrons, a path, and something to use the electrons.
What are the components in a circuit?
A tank circuit has got two components 1. A coil with inductance L, and 2. A Capacitor, C
Where is the positive and negative terminal of the overhead wire for local trains?
One terminal is the overhead wire, and the other terminal is the track, which is grounded.
Where is negative battery terminal on a citroen?
The negative battery terminal is on the battery. They don't have a wire coming from it like they do the positive. For charging purposes, the engine block acts as the battery ground. When disconnecting the negative at the battery, the negative terminal usually has a black wire and the positive has a red.
How do you run your power wire at battery with oldmobile alero 99?
Red, positive + cable to Positive + battery terminal. Black, negative - cable to Negative - battery terminal.
Why do the terminals of the battery have to be connected to different poles of the light bulb for the circuit to complete in a safe manner?
The current flows from the positive terminal, along the wire, through the bulb and along the other wire back to the negative terminal.
Does the red battery wire go on the right?
The red battery wire goes on the positive + battery terminal no matter which side it is on. The black wire goes on the negative - terminal.
What are the rear right and rear left positive and negative speaker wire colors for a 2008 civic?
The red wire and terminal on a 2008 Honda Civic are the positive wires for the battery. The black wires and terminal is the negative battery cable.
Do you attach a battery's positive terminal to a positive terminal and a negative terminal to a negative terminal to increase their capacity?
positive (red wire) to positive post (+) negative (black wire) to negative post (-) positive (red wire) to positive post (+) negative (black wire) to negative post (-) posiItive (red wire) to positive post (+) negative (black wire) to negative post (-) If you want the batteries to provide the same voltage but more current, hook them up this way. If you want the voltage increased but the current remain the same, hook the up with negative post to positive post and so on, until the voltage is what you want. For example using regular flashlight batteries of 1.5 volts, the first way, using only two batteries, you still have 1.5 volts but the batteries now will last twice as long. Using the second way, the batteries last only just as long as a single battery but you have 3.0 volts instead.
How can you tell which is positive and which is negative on a speaker hookup?
Depending on colours of course black is usually negative and the other colour (generally red but depends) is positive. Get a D-cell Battery. Now get two pieces of speaker wire. hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. touch the wires to the positive and negative posts on the speaker. if the cone moves out ward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which. Get a D-cell Battery. Now get two pieces of speaker wire. Hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. Touch the wires to the positive and negative posts on the speaker. If the cone moves outward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which.
What side does electrons flow from in a battery?
Outside the battery:The path for conventional current goes from the positive terminal (+, usually a red wire) to the negative terminal (−, usually a black wire).A wire's electrons flow from the negative (−) terminal to the positive (+) terminal.Since the current forms a continuous a loop in the same direction, the direction inside the battery is "backwards".Inside the battery:Conventional current flows from the negative (−) terminal to the positive (+) terminal.Positive ions flow from the negative (−) terminal to the positive (+) terminal.Negative ions flow from the positive(+) terminal to the negative (−) terminalConventional current assumes that all flowing charges are positive. It simplifies the situation because it hides the more complicated electrons, positive ions, and negative ions.
Is the positive the terminal the one with the wires branching from it?
Not necessarily. The negative terminal may also have more than one wire leading from it.
Is the positive connector on a Lead-acid battery white?
The positive connector on a lead acid battery is frequently not white. In the United States, the wire that leads to it is usually red. The black wire leads to the negative terminal. The positive terminal on the battery is always indicated by a plus, +, sign. The Negative terminal is indicated by a minus, -, sign. The negative terminal is usually attached to the body of the car. (Cars have a negative ground, except for 1935-1948 Fords.) The positive connector is usually attached to the solenoid and generator. So check the wire that comes from the battery to the solenoid. That is positive. Check to make sure it is connected +.
Where does the white wire connect on a six volt battery?
You don't say what you are connecting to the battery. If you have a black and white wire the best guess would be white to negative terminal and black to positive terminal. If you were connecting a 6V light bulb it really doesn't matter.
