A 9 Ω resistor is in series with a parallel pair of 6 Ω and 12 Ω, across a 39 V supply. What is the total current?
Answer and explanation
Correct answer: D. A
- Step 1: The parallel pair is Ω, so Ω.
- Step 2: A.
Answer
A.
Why not the others: A: All resistors were treated as being in series. A: The parallel pair was averaged. A: Voltage and resistance were multiplied.
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