Determine the input impedance zin in the circuit

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Reference no: EM13254824

1. A power amplifier has a gain of 15db and an input level of 2 volts. Assumming that the input and output impedance are the same. What is the voltage level at the amplifier output?

(a) 10 UA

(b) 20 UA

(d) 40 UA

2. if R1 = 220 K ohm, R2 = 56 K ohm,Rc = 6.8 K ohm, RE = 2.2K ohm, B = 180, r0 = 50 K ohm, C1 = C2 = 10 UA, CE = 100 UF, and Vcc = 20 V. Determine the input impedance Zin.

Reference no: EM13254824

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