Question

Question 13

A torch requires 3 cells. Show the arrangement of the cells, with a diagram, inside the torch so that the bulb glows.

Answer 1

According to the convention, electric current flows from positive terminal to negative terminal of a cell. So, the arrangement should be such that the positive terminal of a battery touches negative terminal of other battery and so on. And the terminals of this combination of batteries are connected to a switch and to the base of the bulb. When the switch is turned ON, the bulb glows.