The wire will get hot, the temperature it gets up to will depend on the ampere of the battery and size of wire. The wire can get hot enough to causes burns or start a fire if the battery is large enough. Why this happens is because you have shorted the battery out. The power comes out of the positive post and back in the negative post. When you short it out the power can flow from one post to the other very quickly causing the short to get hot, due to the amount of flow.
The presence of free electrons in a metallic wire cause it to be a conductor. If you connect said wire across the terminals of a battery, and electric current will flow, which means the electrons move from the negative toward the positive terminal.
If you connect positive to positive and negative to negative you will have a 9V battery with twice the current capacity in milliampere hrs than a single batteries. The load then goes between positive and negative paralleled terminals. If you connect one negative of one battery to one positive of the other battery and put the load between the remaining negative and positive terminals you have created an 18 V battery with the same milliampere hr rating as a single battery. If you connect one negative to positive of other battery and the negative of that battery to the positive of the first battery then both batteries with quickly drain and get hot in the process. Contrary to folklore or urban lefends, they do not explode.
The voltage adds if you connect in series (positive to negative). It stays the same if in parallel (Positive to Positive and Negative to Negative).
to get the base- emitter junction forward bias we should connect the negative of the diode with the negative of the battery and the positive of the diode with the positive of the diode so we should connect negative source in the emitter
In order to connect 4-6 volt batteries and end up with 12volts you will need to understand parallel and series connections. to connect two batteries in parallel you would connect the positive side of one battery to the positive side of the other battery; and the negative side of one battery to the negative of the other battery. doing this will not change the voltage. to connect in series you connect the positive of one battery to the negative of the other battery. doing this will increase the voltage;in this example you will end up with 12v. 6+6=12. when you stack batteries in a 2-cell flashlight that is connecting the batteries in series. The answer to the question is: connect two batteries in series; then connect the other two batteries in series. after this is done connect the two pairs of batteries in parallel. If you think of it visually you would have two batteries wide and two batteries tall.
Yup......But only if u connect them in PARALLEL! Connecting them in parallel (e.g. the positive cap from Battery 1 is connected with the positive cap from battery 2.....the negative cap from battery 1 goes with negative cap from battery 2) adds the amperage (voltage remains the same).......Connecting them in SERIES (as in any flashlight the positive cap of battery 1 goes with the negative cap of battery 2 making a "bigger battery" that has the positive cap from battery 2 and negative cap from battery 1...) adds the voltage (the amperage is the same). Note: Use same batteries either parallel or series connection.
On any car, switching the battery hookups will most likely fry your battery.
No, always connect the negative last.
If you connect positive to positive and negative to negative you will have a 9V battery with twice the current capacity in milliampere hrs than a single batteries. The load then goes between positive and negative paralleled terminals. If you connect one negative of one battery to one positive of the other battery and put the load between the remaining negative and positive terminals you have created an 18 V battery with the same milliampere hr rating as a single battery. If you connect one negative to positive of other battery and the negative of that battery to the positive of the first battery then both batteries with quickly drain and get hot in the process. Contrary to folklore or urban lefends, they do not explode.
The battery post positive terminal is where you connect the positive cable. Connect the negative cable to anyplace on the engine or chassis. Connect positive first and remove it last.
If you connect the terminals together with them unhooked from the battery and the engine off, yes that is also called a capacitive discharge.If you connect the terminals together with them unhooked from the battery and the engine off, yes that is also called a capacitive discharge.
the two terminals both conect to the electrode of the battery,so, you can conect two batteries with the two "terminals" for parallel circuit or series circuit. Rocky_B - Yes you can do this to give yourself some extra amps, but connect the negative to the negative of the other battery and the positive to the positive of the other battery - This is what previous poster meant by parallel. Warning: If this is for an automobile electrical system, you do not want to connect it in series; i.e. Positive to solenoid, negative to positive of other battery, negative of other battery to ground, as it would be supplying over 24volts to a 12volt system and may seriously mess up your electrical system or cause wire insulation to heat up, melt, and cause fires.
Connect the bad battery to a good battery with jumper cables. Connect the positive terminals first, then the negative terminals. Now try to start the engine. When finished, disconnect the jumper cables in reverse order.
It may destroy the battery or it may just blow the main fuse or it may do other damage. No way of knowing for sure what will happen.
Connect the Positive + battery cable to the positive + battery post first. Then connect the Negative - cable to the negative - battery post.
Disconnect the negative - terminal first, then the positive + terminal. Unfasten the battery hold down clamp. When reinstalling the terminal connections connect the positive terminal first.
Connect a battery charger to battery positive to positive negative to negative
Best way would probably be to use a multimeter or voltmeter. Turn the meter on to volts DC and connect the probes to the battery terminals, if the voltage is shown as a negative, then switch the meter's probes around at the battery end so it shows the voltage as a positive reading on the meter. Mark the positive and negative terminals on the battery after this. Some car batteries have the negative terminal as the small post, but on some as the big post.