Red Seal Electrician Practice
DC circuitsQuestion 1356 of 1506

Two resistors of 12 Ω and 20 Ω are connected in parallel. What is the total resistance?

  1. 0.133 Ω
  2. 6.00 Ω
  3. 16.0 Ω
  4. 7.50 Ω
Show answer

Correct answer: 7.50 Ω

1/R = 1/12 + 1/20 = 0.133 S, so R = 7.50 Ω.

Source: Computed, 5.3: Simple Parallel Circuits

Practice dc circuits

Questions last reviewed: 18 October 2026