Meters and troubleshootingQuestion 708 of 1506

One resistor in a series-parallel circuit fails shorted. The source voltage does not change. What happens to the total resistance?

  1. It falls
  2. It stays the same
  3. It increases
  4. It becomes infinite
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Correct answer: It falls

A shorted part has abnormally low resistance, and total resistance changes in the same direction.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 7.4: Component Failure Analysis (Continued)

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Questions last reviewed: 18 October 2026