The equivalent resistance between A and B is: Image

Question

G1 Physics · Accepted Answer

From the network reduction shown in the figure, the branches between A and B reduce to 2 Ω, 12 Ω, 4 Ω, 6 Ω and 2 Ω in parallel. Thus 1/R(eq) = 1/2 + 1/12 + 1/4 + 1/6 + 1/2 = 3/2, so R(eq) = 2/3 Ω.