This will still only produce 12 volts. It will produce 1200 watts. watts is the result of Volts times Amps.
Your car should produce about 14.4 volts from the alternator when the engine is running. If it does not produce anything over 12 volts, your alternator is not charging and you need to get it repaired or replaced.
If you can make it produce 12 volts DC then yes
A 12 volt battery supply a 12 VDC potential to a 12 VDC load.
12 volts
The potential difference of 120 volts and 12 volts is 108 volts.
You will need a second battery in series with the first battery to produce the 24 volts DC. To keep it charged the series connection will have to be manually changed to a parallel connection.
No. 12 volts peak to peak would be 6 in the positive polarity and 6 negative polarity. Simply saying 12 volts AC would be 12 volts in each polarity or 24 volts peak to peak
Four D batteries in series produce nominally 6 volts (1.5 volts per cell). A 12-volt supply may damage the machine built to run on 6 volts.
It is 12 volts.
This question cannot be answered because you did not specify the current.
12 volts!!! 12 volts!!! Real Answer 13.1 volts (Depending on Battery)