Red Seal Electrician Practice
DC circuitsQuestion 638 of 1506

Resistors of 4 Ω, 6 Ω and 12 Ω are in parallel across a 12 V source. What is the total current drawn from the source?

  1. 22 A
  2. 2 A
  3. 6 A
  4. 3 A
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Correct answer: 6 A

Branch currents are 12/4 = 3 A, 12/6 = 2 A and 12/12 = 1 A. They add to 6 A.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 5.3: Simple Parallel Circuits

Practice dc circuits

Questions last reviewed: 18 October 2026