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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The ac equivalent circuit for an amplifier is shown in Fig. P13.65. Assume the capacitors have infinite value, RI = 50 Ω, RB = 4.7 kΩ, RC = 4.3 kΩ, and R3 = 10 kΩ. Calculate the voltage gain for the amplifier if the BJT Q-point is (2.0 mA, 7.5 V). Assume βo = 75 and VA = 50 V.
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Problem 13.65
The ac equivalent circuit for an amplifier is shown in Fig. P13.65. Assume the capacitors have infinite value, RS = 750 Ω, RB = 100 kΩ, RC = 100 kΩ, and R3 = 100 kΩ. Calculate the voltage gain and input resistance for the amplifier if the BJT Q-point is (40A, 10 V). Assume βo = 100 and VA = 75 V.

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