A V battery with negligible internal resistance is connected to a resistor in series with a parallel pair of and resistors. What current flows through the resistor?
Answer and explanation
Correct answer: A. A
- Step 1: The parallel pair has , so the total resistance is .
- Step 2: Main current: A, so the voltage across the parallel pair is V.
- Step 3: Current in the resistor: A.
Answer
A.
Why not the others: A is the current in the resistor; A is the total current; A is the voltage across the pair.
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