Two 6 Ω resistors are connected in parallel. What is the combined resistance?

  1. 3 Ω
  2. 6 Ω
  3. 12 Ω
  4. 36 Ω
Answer

A) 3 Ω

1/R = 1/6 + 1/6 = 2/6, so R = 3 Ω. Equal resistors in parallel halve the resistance.

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