Joanne is comparing different sets of decorative lights and wants to choose the lights with the lower power consumption. The two sets of lights contain different numbers of identical bulbs which have the same electrical characteristics and are connected in parallel. Explain whether Joanne should choose the set with more or fewer lights.
Question
Joanne is comparing different sets of decorative lights and wants to choose the lights with the lower power consumption. The two sets of lights contain different numbers of identical bulbs which have the same electrical characteristics and are connected in parallel. Explain whether Joanne should choose the set with more or fewer lights.
Solution
When bulbs are connected in parallel, each bulb draws the same amount of power from the source regardless of how many other bulbs are in the circuit. This means that the total power consumption of the set of lights is directly proportional to the number of bulbs in the set. Therefore, the set with fewer lights will consume less power. So, Joanne should choose the set with fewer lights if she wants to minimize power consumption.
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