34th BCS Electrical Questions, Exams of Electrical Engineering

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vs -w fasts -Rory farve 929 FIRST PAPE w> R Subject Code: 891 Time allowed—3 hours Full marks—100 [N.B.—All questions are of equal value. Answer any eight questions.] L-(@ State and explain Thevenin’s theorem. Apply Thevenin’s theorem to find the current through 2:5 ohm resistance in the following circuit:-— 6Q SQ A Vy S100 $40 s 2:50 Fig. 1 (a) (b) Using nodal analysis, find the various branch-currents—in ihe circuit shown below:-— 7A(Q) 2Q (V)5a Fig.1(6) { 2. (a) Determine the currents i,, i, i, in the following circuit using mesh 4Q iia f analysis:— 3Q A ——> ty 40V 3) ‘ | 7450 AN——— a i G 64 c Fig, 2(a) [Plone trent Y