Two resistors of 6 ohms and 3 ohms are connected in parallel. What is the equivalent resistance?
Answer and explanation
Correct answer: B. 2 ohms
- Step 1: 1/R = 1/6 + 1/3 = 9/18.
- Step 2: R = 18/9 = 2 ohms.
Answer
2 ohms.
Why not the others: Adding the resistances gives the series value; the mean and the difference are not equivalent resistances.
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