Red Seal Electrician Practice
DC circuitsQuestion 705 of 1506

A 20 V source feeds a 16 Ω resistor in series with a 60 Ω and a 40 Ω resistor in parallel. What is the total current?

  1. 0.5 A
  2. 0.83 A
  3. 1.25 A
  4. 0.17 A
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Correct answer: 0.5 A

60 Ω and 40 Ω in parallel give 24 Ω. Total = 24 Ω + 16 Ω = 40 Ω. I = 20 V / 40 Ω = 0.5 A.

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