Question

R1 3 51k Cc1 1OUF 10uF Vs Ro RLS 58k VO Re13 Ri Cb1 1000uF a Ro 4.3K

just part B

Answer 1

Given ro= 2.5k, gona B Re- RLXR₂ RAR - 100 2.5k - sikxak (51412)K 19 m = 0.04 v Rp = 9.714K q. IK
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without cbi here Rels coneidered = Rella voltage gain 10=-Im Varo vi= VIT 9 MUARE -VA (149 m RE = - Im Jaro! Av= (lig m RE) 1 9mRu Av= tgm RE --004 X 4 X10 let 0.04x10² A 2-3.97 NOTE : When RE conordered it will provide Negative feedback and it reduce the voltage gain.

current gain :- A I=-B Ib loput resistance :-(Ri). Ri= Rgt CHBRE = 9.7K+ (101) IK = 9.7K + rolk Ri - 110.7K output resistance & Ro- RellRL - u.3k/156k Tro = 4K

Given n=25k. DIXR gmm - 100 2.5k RR = SIKxar (51412)K 19m = 0.04 v Rp = 9.7145 a with Cb capacitore and be sources are short circuiteed. Voltage gain (Arjan vo Vero I = -9m vim Ro' = Rullre 4.3k/156k = 4K vo- gmvaro vi = VE Arawo = -9mirgh Rd =-gm Rol =-0.16k Av = - 160/

tap Current gain - AI. current gain up. In ct amplifier A gmv = Bib. so I =- Bib I = 1 = - B. so current gain A, AI=-ß AI=-100 Rinput Resistance - [Ri] Ri= Rollat - 9. 4k/1 2.5K Ri=1988) Output reerstance (Ro). Ro= Rellae 4.36/56K Ro = 4K