Red Seal Electrician Practice
DC circuitsQuestion 1366 of 1506

Two resistors of 10 Ω and 50 Ω are connected in parallel. What is the total resistance?

  1. 30.0 Ω
  2. 5.00 Ω
  3. 60.0 Ω
  4. 8.33 Ω
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Correct answer: 8.33 Ω

1/R = 1/10 + 1/50 = 0.120 S, so R = 8.33 Ω.

Source: Computed, 5.3: Simple Parallel Circuits

Practice dc circuits

Questions last reviewed: 18 October 2026