Question 7
Use two 1.5 V electric cells in holders, two LED lamps or 3 V lamps, electrical wires and two switches (a breadboard is optional). The cells are in series; each lamp has its own switch in a separate parallel branch, as shown.
What happens to the brightness of the lamps when both switches are on, compared to just one switch? Why do you think this is so?
What happens to the brightness of the lamps when both switches are on, compared to just one switch? Why do you think this is so?
