Q. For the circuit shown, calculate the lower and the upper critical frequency due to the input circuit. Vcc +20 V Re Bac = 150 Cpe = 4 pF Cbe = 10 pF C3 %3D 2.2 kN V R 33 kN out H 0.1 μ %3D RL 5.6 kN R 0.1 uF 50 0 R2 4.7 kN RE 560 N Vin 10 μF

The circuit is shown below, Vin is the sinusoidal waveform with magnitude 5V and frequency is 100 Hz, R = 1 k, C = 1 uE, the chip is supplied by + 12 V source. a) What is the waveform of Yout? b) Calculate the magnitude of Vo c) If Vin is triangle waveform, what is the output waveform? -Vout , if Vin is triangle waveform with magnitude of 5 V (peak-to-peak value is 10 V) and frequency is 10 kHz, calculate waveform of you and the magnitude of I/?

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