Question

4–2 Find the voltage gain vo/vı and the current gain io/is in Figure P4–2. For is = 10 mA, find the power supplied by the input current source and the power delivered to the 1.5-k 2 load resistor. + 6 + 100 S2 10032 | 9001 is 1 v 2ko } 1.5 kaš VO o FIGURE P4-2

Answer: -771, -25.7, 5 mW, 99.2 mW

Answer 1

The given civ cuit is 1oon w f 00n Vo S1.5kn 2KA 9iven sz 1om A From the left part of the circuit 0on 1omA current division Tule i s aven by Busihg Is x 100 (lo6tlo)

, lomA and2SmA (00) ir 100(SmA) = O.S V No LO the Riqht fart of the civcuit is =1ox(SmA) io +5omA)x 2K 2ktl5k) 450MA2 LA -2 Vo KV Vo Vo io (1.5Ka)

Vo 27x1000 tox 0S 0.SV Vo and oun 35 35xloxl03 lomA = -25. H4 is input cuffent Source s tomA 7Pouer Sufplled by input curret Souse Pisi) -(o mA) (0.sv) P- (oxi as) P= Sxi P- 5muJ

,5Kn load Tesistov Power delivered to the Pdel Vo io 2 Lx- 35 9x2X1 카ox 35 Pdel z 99.1836 oots