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Weekly Physics Challenge
A 12V battery is connected to a circuit with three resistors (2Ω, 3Ω, and 4Ω) in parallel. What is the total current drawn from the battery?
Explanation:
Using 1/R_total = 1/2 + 1/3 + 1/4 = 13/12, so R_total = 12/13Ω. Then I = V/R = 12/(12/13) = 13A
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