Three identical lamps are connected in series to each other and to a voltage source. If another identical lamp is added in series connection (all four connected in series), what happens to the brightness of the fir three lamps? Increases Decreases Stays the same Not enough information
Three identical lamps are connected in series to each other and to a voltage source. If another identical lamp is added in series connection (all four connected in series), what happens to the brightness of the fir three lamps? Increases Decreases Stays the same Not enough information
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Transcribed Image Text:**Question:**
Three identical lamps are connected in series to each other and to a voltage source. If another identical lamp is added in series connection (all four connected in series), what happens to the brightness of the first three lamps?
- ○ Increases
- ○ Decreases
- ○ Stays the same
- ○ Not enough information
**Explanation:**
This question assesses the understanding of series circuits. When lamps are added in series, the total resistance of the circuit increases, which reduces the current through each lamp if the voltage source remains constant. This typically results in a decrease in brightness for each lamp.
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