Find current i in circuit with 4.8 V source and triangle of resistors 3 Ω on BA, 6 Ω on BC, 6 Ω on AC. [Diagram: Image]
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Question

Find current i in circuit with 4.8 V source and triangle of resistors 3 Ω on BA, 6 Ω on BC, 6 Ω on AC. [Diagram: Image]

G1 Physics · Accepted Answer

Step 1: Resistors 6 Ω and 6 Ω are in series, giving 12 Ω. Step 2: This 12 Ω branch is parallel to the direct 3 Ω path, so Rₑq = 3×12/(3+12) = 2.4 Ω. Step 3: Current from the 4.8 V source = 4.8/2.4 = 2 A, corresponding to option B.