Which Circuit Is the Best for Lighting Up Light Bulbs?

Which of the four circuits shows the best way to light up the light bulbs?

Final answer:

The best circuit to light up the light bulbs is the first one, which describes a parallel connection where each bulb is directly connected to the battery, ensuring they all receive the full voltage and thus shine brightly.

Explanation:

To determine which of the four circuits describes the best way to light up the light bulbs, we need to understand how a circuit works and the difference between series and parallel connections. In a series circuit, all components are connected end-to-end, forming a single path for the current to flow. In a parallel circuit, all components are connected across the same voltage source, each having its own separate path for current flow.

• The first circuit description suggests a parallel connection, where each light bulb is separately connected to each terminal of the battery. In this setup, each bulb receives the full voltage of the battery and will light up optimally.
• The second circuit seems to describe a series connection, in which the light bulbs are connected in a line or chain. This circuit is not as efficient as the parallel setup because the total voltage of the battery must be divided between the bulbs, which leads to them being dimmer.
• The third circuit description is incomplete and does not provide enough information to evaluate.
• The fourth circuit also seems to indicate a series connection, similar to the second description, which would also be less efficient than a parallel connection.

Therefore, circuit one represents the best way to light up the light bulbs since it describes a parallel connection where each light bulb receives the full voltage of the battery, leading to brighter light output from each bulb.

It's important to note that the differences in brightness and efficiency between series and parallel circuits can be a crucial aspect in various practical applications.