Question

Six equal resistances each of r=2 ohm are connected to form the network shown in fig. The resistance between ab is

Answer 1

Series = 12 ohms

Parallel = 3 ohms

Series: Rt = R1 + R2 + R3...

Parallel: Rt = 1/R1 + 1/R2 + 1/R3...

Series = 2+2+2+2+2+2 = 12 ohms

Parallel = .5+.5+.5+.5+.5+.5 = 3ohms