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CURRENT ELECTRICITY
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Question
What is the equivalent emf of two cells in parallel with ε₁ = 5 V, r₁ = 1 Ω, ε₂ = 5 V, r₂ = 2 Ω?
A. 2.5 V
B. 7 V
C. 5 V
D. 10 V
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