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CURRENT ELECTRICITY
Question #80810
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Question
For two cells in parallel, what is the correct expression for equivalent internal resistance?
A. r_eq = r₁ + r₂
B. r_eq = (r₁ + r₂)/(r₁r₂)
C. r_eq = r₁r₂
D. r_eq = (r₁r₂)/(r₁ + r₂)
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