Nothing will happen. Your question is not properly worded.
On any car, switching the battery hookups will most likely fry your battery.
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.
If the capacitor is charged then the battery will explode.
It will not fit in the space provided or the posts may be reversed. As long as you connect the positive and negative terminals correctly it will function as any battery should. Just make sure you do not buy the wrong battery.
Nothing happens to the vehicle if you connect the negative side first.But is is safer to connect the positive side first. Reason If the negative side is already connected and you put the positive side on you take a chance of touching a part of the body or radiator with your wrench while tightening it, causing the positive side to ground out. If your negative side is not connected yet and you touch the wrench to the body while tighting the positive side nothing will happen. So installing the positive side first reduces the chance of shorting the battery out which could cause the battery to explode.
It is a 12 volt DC battery and you might get a tingle but nothing else.
You would succeed in making a simple electro-magnet that uses the copper wire as a conducter for the elctricity that comes from the battery,the nail on coming in contact with the wire which is wrapped around it harnesses the elecric power being provided by the battery via the copper wire and an magnetic field around the nail is created, hence the name electro-magnet!
Dead short in the battery. Battery can explode and damage can be done to the electronics in the vehicle.
It could blow up the battery.
When you start at the negative end of the battery, you start to lose electrons and the circuit is closed.
It could explode, getting battery acid all over you and anyone else nearby.
This would be an Electromagnet...... If the battery is disconnected, then the iron bar will become a permanent magnet.