modality - a method of therapy that involves physical or electrical therapeutic treatment. rehabilitation - the treatment of physical disabilities by massage and electrotherapy and exercises.
An AA battery is a 1.5 volt battery so if you connected 8 together in series you would have the 12 volts, but you would have no where near the amount of amps necessary to turnâ¦ the engine over.
Many batteries are made of these metals, therefore they will all give off the same voltage. AA, AAA, C, and D batteries all give off 1.5V (if they are made with NiZn). The size difference accounts longer battery life, or even spreading the batteries current out over a greater distance. Now the 9 volt battery is a little bit different. In the common AA battery, there is a typically a Zinc rod, surrounded by a paste (the electrolyte, or a bridge for the electrons), the paste is contained within a Nickel tube (lets call this tube/paste/rod mixture a cell).