To obtain 12 volts, you can connect six 2-volt batteries in series. This means connecting the positive terminal of one battery to the negative terminal of the next, and so on, until you have connected all six batteries. The positive terminal of the first battery and the negative terminal of the last battery will then provide the 12-volt output.
To obtain 24 volts, you can connect twelve 2-volt batteries in series. This involves connecting the positive terminal of one battery to the negative terminal of the next, and repeating this process until all twelve batteries are connected. The positive terminal of the first battery and the negative terminal of the last battery will then provide the 24-volt output.
By arranging the batteries in these specific configurations, you can achieve the desired voltage outputs of 12 volts and 24 volts, respectively.