Question

3. Find the Thevenin equivalent circuit between a-b (on left). What would be the value of R, to maximum power in the load Ru Find that maximum power, Given: R1-1200, 12-22022, R3-40092. 1 Page 1 of 1 Words: 42 of 92

Answer 1

while calculating Thorining resistance make sure that all Independent voutese Loures au shost invited and independul- Current Sounes are Open Iruited. Remove the load. . . . . . 4oort of 14 You - mo Miho Ry=120r Xl+Vn ] R3 = 4002 Rua 2202 v 011 Va 2 2 120 Loop - 4 Bua Loop- سم Rth FD - There is no soune in the inuit, so we have to Energies for this we ean Connect fither voltase or current.. I have considered AA Current 2. By obro's low - Rib = ~=isi N 4. - Apply kill in loop - + Vox + 2201 1+. Vo ) +3v2=0. 120 4 Vad +220 + 22 Ya -0. 2 12 35 35 Va =-220 V Vira =-220 a ? 6

264 volts. Nas - 264 roues. Apply KVL in loop - - V+ 400(1) + 220[1+ y + 3xm=0. -V + Uo0(1) - V4: =0. ..V = 400-6-294):- 30042 Roh ľa - Booya 437 7142 the while calculating 9th Almove the - load. R = 12000 Rg=yoor ve tva .. en . + 43 Ş R, = 22001 Yth. e voop- <D) 37 woop- Атр кL fm loop - -9 + VH + 220V + 3 Va' 20. T HE

una + va = 9 35 Apply Kil along loop - - Nath - Viq+q=0. Ith = a - Vm = 9-3 261 volls = 35" 14th = 1.4571 youts 3 > Rth = 437.7142 Ę RL Vtb = 7645710 Maximum power is transfered to the load when R = Rth = 437.7142) Nth f.457) = 8,57 X10 I= Rob +RL 437.714+ 437.444 Pomaa = 2²* RL = (8.51x10 )** 137.714 Panan = 0.03176 watts = @ 31.76mui