A 10 ohm and a 15 ohm resistor are connected in parallel. What is the combined resistance?
Answer and explanation
Correct answer: B. 6 ohm
- Step 1: For parallel resistors , so .
- Step 2: ohm.
Answer
6 ohm.
Why not the others: 25 ohm: this is the series value. 12.5 ohm: the two values were averaged. 10 ohm: this is just the smaller resistor.
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