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What is the main disadvantage of parallel circuits?

Any break in the circuit stops the flow of charges.
There are multiple paths for charges to flow.
If one bulb goes out, the other bulbs will go out.
They are complicated to design and build.

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Answered by GPT-5 mini AI
They are complicated to design and build.

(Parallel circuits have multiple paths — an advantage — but require more wiring and can draw more current from the source, making them more complex to design and build than simple series circuits.)