Question

would you like please answer all questions in part 3

THEVENIN'S THEOREM AND MAXIMUM POWER TRANSFER 131 Part 3 Maximum Power Transfer (Experimental Approach) (a) Construct the network of Fig. 11.8. Insert the measured value of each resistor R EIOV 95.732 218S2 325 2 . 424e R FIG. 11.8 Eths Vabs 6.8v Rths Resissn (b) The Thevenin equivalent circuit will now be determined for the network to the lel of the terminals a-b without disturbing the structure of the network. All the measurements will be made at the terminals a-b. Determine Er by turning on the supply and measuring the open-circuit voltage V En =... Introduce the 1-kn potentiometer to the network of Fig. 11.8, as shown in Fig. 11.9. ԼևՈ թմ. mik her FIG 11.9 Turn on the supply and adjust the potentiometer until the voltage Vis Ey/2. a co- dition that must existir R. - Then turn off the supply and remove the potentiometer from the network without disturbing the position of the wiper arm. Measure the resistance between the two terminals connected to a-band record as n Rn - R.

Answer 1

T: E Rr from from measured values = 6.77 ) measured values. Peocedure is same as above. ... 95.7 130.4 = 153.02 3474 ER &th 226.14474 MMM y en R = 26.1 x 1474 = US3 m measured values E = 6.77V & Rty 153.2 ] Table 1.4 сол o we got manimum power When 2002 RL I v cmeasured) V R = V/R (calculated) or t ov OmW 252 + 0.95 - '36.1 mW 1 1.67 - 55.7mw loon 2.68 - 71.8mw ( 150 3.35 1 74.8mw] - 3.83 - 73.3mw 2502 > 4.199 70. 2mw 3002 4.48 H 66.9 mw 3502 4 717 63.3mw 400-2 + 4.89 59.imw 4502 + 5:05 I 56.7mw 53.6mw. R=25. un calculation for y footable 6.77 6 & 2:25 V, = 25 X6.77 = 0.95 153425 soort est for lob 7 hamu) Graph tenedly Masimum Power 74. 8mw R = P21592 20 Iro 100 150 200 250 R I so 100 iso za 250 R

*Maximum Power Transfer * Given okt 220 ww mu 9 m 330 4702 _eb 0 To find E us reduce v ah let 330x220 330+220 the 91 circuit 132 I 470 Vabttn 3470 را مل ا 10=6.78 According voltage division 470 x 470+91+132 Ev=6.78 To find in the the i from figure 11.8 short ll voltage source circuit so circuit gets modified to 91 mm Lanc e = 223 а ?что е Ph 3307 Efth 21 - 220 o 223X470 -= 1512 223+470 R = R42 = 1512] from measured values. Let us modify © calculating the ckt Eth & Rth 2182 To find Eth 95.72 95.7.130.4 3250 £4742. = 10T I 4742 Voorth to / ob 474 LS 6.77 Em = 10x 95.7+130.4+474