In the circuit shown, a 12 V battery drives current through two resistors in series: R₁ = 4 Ω and R₂ = 8 Ω. What is the current through R₁?
A0.5 A
B1.0 A
C1.5 A
D3.0 A
Explanation
📌 Series: R_total = 4 + 8 = 12 Ω. Current is the same everywhere: I = V/R = 12/12 = 1.0 A. Distractor A: only used R₂; C: split difference; D: forgot to add resistors (used just R₁: 12/4 = 3).
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