QUESTION 3 a) For a power amplifier circuit, given that Rg = 2 kn, R = 400, B = 25 and Vcc = 20 V, 18 = 10 mA peak. Calculate: base current, Ig 5) ii) collector current, Ic 트 iii) iv) S V) Paut Pin % n Page 5/9 (20 marks) Q + [2 marks] [1 mark] [4 marks] [1 mark] [2 marks]
3 March 2021 SETA-Final.pdf v) % n b) c) d) ii) 701920850-b8a5 48e7 ac 3830 Briefly describe TWO (2) modes of Operational Amplifier (Op-Amp). i) Differential Mode Common Mode Open with Google Docs [2 marks] Briefly explain the operations of non-inverting amplifier. [2 marks] [2 marks] Determine the Common - Mode Rejection Ratio (CMRR) and express it in dB for an Op-Amp with an open loop differential voltage gain of 85,000 and a common gain of 0.25. [3 marks] [3 marks]
QUESTION 3 a) For a power amplifier circuit, given that Rg = 2 kn, R = 400, B = 25 and Vcc = 20 V, 18 = 10 mA peak. Calc
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