Question

*.Q2/// Find Thevenin's equivalent across the 2 Ohm resistor for the circuit below .20 IT 12} 342 lov 2V 22 FM -6v ' 8v 30 } பிட

Answer 1

for the given circuit Vis can be found easily by finding Doc, Rth. & mulliplying & Nah them. = IN X RN the To find Ina Isc, Remove por load & short agauit terminals, Apply mest Analysis from loop 34 tov 6 33ri 3-1 e 10-4 +6 =4i, - x))+(iitis) 3 12 = 41, -22 +363 0 Iter From loop 2+4+2 = (3-4)2+4i2 - + 512 +013-② Frankop @ 6+8+2 = 3 (istii)+3Lis) 16 = 34, +022 +613 - ③ saling equations maa 2-434 A, ig = 2086950, i3 = 1.4492A. from the circuit Isc = -(13+13) -(2.08695+1.4492) Da=isc. To find Rih= Rear, sholt agauit all the voltage say sources, look through open arauited A, B Terminals. from the Egauit 42,32 ore inparalk! RA = -3.536 Amps -3.536 A 12 12,32 are in parallel , 1x3 =0.752 1+3 Ro=4x3 4 +3

4 Now Ris= Req=RATRB -0.75 +12 12 1 شما - 2.46492 Rih=2.4642 th:- VAB= BIGX PA --3536 * 2.464 -8.713 volts Vi6 = Thevining equivalent Circuit R76=2-46402 R&h=2.4642 (ou 16=8.713 th=8.713/ | Answeis: - Vih= -8.713 volts [hevinin'e voltage] Rth=2.4642. [Equivalent Resistance] Pn= -3.536A [norton's Current]. finding Note: The Answers were verified with mult in software. We can directly find Uth without Du by standard procedure but the polarities & node equations will be little complicated Hence this pos, Real method is considered.

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