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When resistors are connected in parallel, the total resistance is:
AUnchanged
BInfinite
CLower down
DHigher up
Answer & Solution
Correct answer: C. Lower down
1. Adding parallel paths gives current more routes.
2. When resistors are connected in parallel, more current flows from the source.
3. More flows than would for any of them individually.
4. So the total resistance is lower.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 21 'Circuits and DC Instruments', sections 21.1-21.6_
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