12V(+) 6V 3 ΚΩ Το O 6 mA 6 ΚΩ 4 ΚΩ
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Using Superposition, determine Io
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- Consider the following circuit. The frequency of oscillation is: R₁ ww R₁ www 6.8kΩ 2.95 kHz 1.36 kHz 434.32 Hz 1.06 kHz HH 0.022 μF 0.022 μF 0.022uF 6.8 ΚΩ WHI 6.8 ΚΩQuestion 10 Determine VBC- Μ R₁ 22 ΚΩ R₂ 10 ΚΩ Vcc +30 V Rc 1.0 ΚΩ 2N3904 Byc = 200 RE 1.0 ΚΩR1 R3 R6. R7 42 + 2VE R . R4 R7 R5 Rs ΙΩ
- (b) Figure Q2(b) shows a BJT amplifier with ß = 120 and VBE = 0.7 V. (i) Calculate current, IB, IC and IE and output voltage, VCE for the circuit using exact analysis. (ii) Sketch the midband AC equivalent circuit using re model. (iii) Determine the input impedance, Zi, output impedance, Zo, voltage gain, Av and current gain, A; for the obtained answer in part Q2(b)(ii).Listen R₁ Vinoww 22 ΚΩ + R ww 150 ΚΩ (c) and (d) out Rf * 82 ΚΩ DET R₁ 10 ΚΩ out (b) The circuit or circuits with a virtual ground is (b) (d) all figures represent circuits with virtual ground out (d) -OV R 33k out R₁ 2.7 ΚΩWhat is the collector current in the given circuit in figure 16 V 2.7 ΚΩ 470 Ka B = 90 2.93 mA 4.27 mA 1.85 mA 3.13 mA
- Consider the circuit below. The frequency of oscillation is: www OF R₂ 1,0 ΚΩ C₁ 0.015 μF R₁ 1.0 ΚΩ 11 L Q₁ 2N5458 C₂ 0.015 μF 10.6 kHz 1.94 kHz 19.4 kHz 15.9 kHz www R₁ 10 ΚΩ R3 820 02 ww R₁ 10 ΚΩ ovour D₁ IN914 C3 1.0 με* The time constant for the following circuit is 40 ΚΩ wwwwwwww 20 ΚΩ ell 10 kQ2 mH 30 kQ 5 Us O 10 Us O 0.3 Us O 0.2083 Us Ograph How would you increase the critical frequency? b. How would you increase the gain? a. 0.047 μF 0.047 uF R₂ 27 ΚΩ (Ctrl) WI www 2.7 ΚΩ Styles R3 1.5 kn R₁ 2.7 ΚΩ