Question

(a) Calculate the equivalent resistance of the network across the points A and B shown in
the figure.

(b) For the combination of resistors shown in figure (a), find the equivalent resistance between
(i) Cand D and
(ii) A and B.​

Answer 1

Please refer to the image attached for your answer.

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Answer 2

Answer:

The given network, shown in (Fig. 3.13) (a), can be represented as shown in (Fig. 3.13) (b) The resultant of 4Ωand8Ω resistances, which are in series in the arm EDC, is given by

R1=4Ω+8Ω=12Ω

Similarly, the resultant of 4Ωand8Ω in the EFC is given by

R2=4Ω+8Ω=12Ω

The equivslent circuit of R1andR2 which are in parallel is shown in (Fig. 3.13)( c)

If R is the equivalent resistance between the points AandB, then

1R=1R1+1R2=112+112=212=16

or R=6Ω.

Explanation: