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Hi please help with explanation on how to do thanks
Resistance = 10 - 2 - 2 = 6 Ω
ans: A
Rᴛ = V/I = 12/8 = 1.5 Ω
1/1.5 = 1/3 + 1/4 + 1/R
R = 12 Ω
ans: D
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