A string of nine lamps is wired in series and one bulb burns out. The rest of the lamps:
AGo loud
BGo dark
CGo bright
DGo warm
Answer & Solution
Correct answer: B. Go dark
1. A burnt bulb breaks the single path.
2. No current can flow anywhere in the string.
3. So all the other lamps go dark.
_Source: OpenStax University Physics Volume 2, Chapter 10, Direct-Current Circuits._
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