Question

Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential difference of the battery will be ............. V.

Answer 1

Three electric cells of potential difference 1.5 V each have been connected as a battery.

The potential difference of the battery will be ............. V.

The ans is 4.5 V. because, when two or more cells are connected in a series, the total potential difference is the sum of their potential differences.

Thus, in this case it is- 1.5+1.5+1.5=4.5V.