Question

For the combination of resistors shown in fig Find the equivalent resistance between (a) C and D
(b) A and B

Answer 1

$R_{CD}=\frac{3\times 9}{3+9}=\frac{27}{12}\Omega$

$R_{AB}=3+\frac{27}{12}+3$

$=\frac{36+27+36}{12}$

$=3.25\Omega$