Red Seal Electrician Practice
DC circuitsQuestion 703 of 1506

In the circuit of a 12 V source, a 100 Ω series resistor and two 200 Ω resistors in parallel, what is the voltage across the parallel pair?

  1. 3 V
  2. 8 V
  3. 12 V
  4. 6 V
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Correct answer: 6 V

The total current is 60 mA, so the 100 Ω equivalent of the pair drops 100 Ω × 60 mA = 6 V.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 7.2: Analysis Techniques for Series Parallel Resistor Circuits

Practice dc circuits

Questions last reviewed: 18 October 2026