Three resistors of 2 Ω, 4 Ω and 6 Ω are connected in series. What is the total resistance?

Answer and explanation

Correct answer: A. 12 Ω

  1. Step 1: In series the resistances add.
  2. Step 2: 2 + 4 + 6 = 12 Ω.
Answer
12 Ω.
Why not the others: 1.1 Ω: the parallel formula was used. 48 Ω: the values were multiplied. 4 Ω: this is the mean value.

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Three resistors of 2 Ω, 4 Ω and 6 Ω… | National 5 (Scotland)