the inverse of resistance is conductance
conductance of each = 1/8
in parallel conductance adds
total conductance = 1/8 + 1/8 = 1/4
so resistance = 1/ (1/4) = 4 ohms
or
1/R = 1/R1 + 1/R2 + 1/R3 .....
What is the total resistance of two 8Ω resistors in parallel?
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