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Why most car bodies are attached to the negative terminal of the battery?
The DC electrical system of the car requires a positive and negative electrical conductors for each electrical device. Taking the example of a single lightbulb powered by the car battery, this could require a wire leading from the positive terminal of the battery to one terminal on the lightbulb and a second (return) wire leading from the other terminal on the lightbulb back to the negative terminal on the battery. Two wires are required - a positive and negative. To reduce the quantity of wires required, the negative "wire" is actually the car body. Hence there is a positive wire leading from the positive terminal of the battery to the positive terminal of each electrical device on the car and the negative terminal of each electrical device on the car is connected to the car body (a metal conductor). The body of the car is then connected to the negative terminal of the battery, completing the circuit. There are virtually no return wires. This works as cars use a low voltage (12 V). If they used a higher voltage, this system could result in electric shock from touching the car body.
Wiring 1 farad capacitor?
the capacitor has 2 wires or poles, one is the ground or negative and the other one is the hot or positive... if it is for car audio amp the ground is connected to the chassis and the positive is connected to the battery and to the positive wire of the amp.
Can a loose negative battery cable ruin an alternator?
Yes, if the negetive battery cable is not connected propperly to the battery, it will ruin the alternator and probably kill your car.
What is the polarity of car grounding?
The car grounding system is typically connected to the negative terminal of the car's battery, which is considered the ground or negative terminal. This means that the polarity of car grounding is negative.
What are positive ground cars?
Cars in which the positive terminal of the battery is connected to the chassis. They require specially designed components built for positive ground cars. The usual configuration is a negative ground (the negative battery terminal connected to the car's chassis).
The alternator is good but it won't charge the battery?
I had the same problem. Try replace the cable/wires that lead from under the car to the positive and negative posts to the battery. This is a common problem for this car. Maybe defective wires were used when the cars were originally manufactured.
Why should a car battery's positive terminal be connected first for charging?
Batteries vent Hydrogen gas. You should always connect the positive battery cable first to avoid a spark at the battery that could cause the Hydrogen to explode. The negative cable should never be connected to the battery negative post. It should be connected to another ground area on the engine.
What happens if you connect the ground wire to the terminal and the red wire to the - terminal on the car battery ie connect the battery backwards but did not start the car?
once a battery is connected even if the key is not in the ignition, there is always power at certain points in your car. Connecting a battery backwards will not start your car, but it can and will fry the wires to your starter.
Can you join batteries to make RC last longer?
You could put them in parallel--wire positive to positive, negative to negative, then connect the positive and negative wires to the car. This would give you twice the current capacity, and you'd be okay because the car's only going to take as much power as it needs. If you wired them in series--positive on the first battery to the car, negative on the first battery to positive on the second, negative on the second battery to the car--you'd double the voltage and burn the car out.
Can mixing the negative and positive car battery cables blow any fuses?
Yes, blown fuses, burnt wires, fried computers......
How do you reboot a car computer?
Disconnect the negative terminal of the battery Leave it disconnected for an hour. (The amount of time it takes to replace the battery). Reconnect the negative terminal of the battery. This works because a transient (voltage spike, noise) is generated when the terminal is reconnected. This is not necessary when the battery is replaced because the negative terminal is normally the last connected. However, when a car's battery dies in storage for example and is recharged with disconnecting the battery, the car might not start because the computer is not running.
What coloris negative on a car battery?
Normally the black battery cable is negative.
