A circuit contains a battery connected across two resistors in parallel: and . What is the total current drawn from the battery?
Answer and explanation
Correct answer: D.
- Step 1: Find the equivalent parallel resistance : .
- Step 2: Apply Ohm's law to calculate total current from the battery: . (Alternatively, sum branch currents: and , yielding ).
Answer
.
Why not the others: is only the current passing through the branch; is the current if resistors were connected in series () or an inversion mistake; incorrectly adds fractional denominators.
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