Question

Find the equivalent resistance between a and b,

(i.e., Req = Rab). Answer in units of ?.

Answer 1

solution gr za a im Fig Gruit diagram, a that it is unbalanced from figure it is clear Wheatstone bridge. Hence to find equivalent we will use the methoel afb desistane between of Delta to star. Rc le Ra 12 f Zbor - . Rand Ford stas, Delta Here In xtr – 7 = tr (1+ 7+6 ) 1rxon e Re- PR x 60 re= (1+7+600 = 1 = 2 2 2 11+7+6) 7rxon Rd = = 42 = 32 14 (1+7+6

figure is also equivalet Thus circuit to following diagram of diagram 1 in а ом- are from figure it is clear that are & in in series > R = (9 + 2/2) = C . it is also clear 32 e tor are in series R2 = (3+4 ) 2 = 72. Hew circuit diagram R = 66 it is clear that R & R are Equivalent resistance of ReR is in parallel, Here given as = h + ke

= 7 4 + + - t = 49+66 7866 7x66 - R = 462 - R=4.02 This is equivalent resisface of R&RL. New circuit diagram- R-4.02r. series, arb since "ti & R=4.02de is in Heme equivalent resistance between is giver as Rab= I det R Rabo tat 4.000 Rab= o.ss+4-024 Rab- 4.52 de Thus Equivalent resistant Rab-4.San .