In the circuit shown in the figure, we have to find equivalent resistance between the points (a) F and H and (b) F and G.

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(a)

For calculating the equivalent resistance between points F and H, we redraw the circuit as below

The equivalent resistance between F and H is the resultant of resistances, , and connected in parallel. Therefore,

(b)

For calculating the equivalent resistance between points F and G we redraw the circuit as below

It is equivalent to the circuit below

Therefore, the equivalent resistance between F and G is