Two sets A and B, of three bulbs each, are glowing in two separate rooms. When one of the bulbs in set A is fused, the other two bulbs also cease to glow. But in set B, when one bulb fuses, the other two bulbs continue to glow. Why do we prefer arrangements of Set B for house circuiting?

Explanation

To understand why we prefer the arrangement of Set B for house circuiting, we need to analyze the two different configurations of the bulbs: series and parallel.

### Step-by-Step Solution:

1. **Identify the Bulb Sets**: We have two sets of bulbs, Set A and Set B, each containing three bulbs.

2. **Analyze Set A**: In Set A, when one bulb fuses (breaks), the other two bulbs also stop glowing. This indicates that all bulbs are connected in a series circuit. In a series circuit, the current flows through each bulb one after the other. If one bulb fails (fuses), it breaks the circuit, and no current can flow, causing all bulbs to go out.

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