Question

In the network shown in Fig.8.49, Calculate the equivalent resistance between the points (a) A and B, and (b) AND C.

Answer 1

(a)

Refer image .1

Req between $A$ and $B$

Refer image .2

$\Rightarrow Req=6\Omega$ in parabolla with $2\Omega$

$\Rightarrow Req=\frac{6\times 2}{6+2}=\frac{12}{8}=\frac{3}{2}\Omega$

$\Rightarrow (Req{)}_{AB}=1.5\Omega$

(b)

Refer image .3

between $A$ and $C$

$\therefore Req=4\Omega$ in parabola with $4\Omega$

$=\frac{4\times 4}{4+4}=\frac{16}{8}=2\Omega$