Purpose: To show that the power dissipated by an incandescent lamp in a series circuit is inversely proportional to its power rating.

100W and 15W bulbs connected in series.

Plug in the system and remove a bulb to show that the two bulbs are in series. Replace the bulb and note that the 15W bulb is the one that emits the light. Terminals are provided for measuring voltage drops if quantitative measurements and calculations are desired.

References:

Manual: None