Which of the following is/are the characteristics of ideal amplifiers? 1. Open loop profits are infinite II. Bandwidth is infinite III. Output resistance is infinite Please choose one: A.I, II, III b. I, II C. Lonely II D. LOnely I e. Lonely III
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Which of the following is/are the characteristics of ideal amplifiers?
1. Open loop profits are infinite
II. Bandwidth is infinite
III. Output resistance is infinite
Please choose one:
A.I, II, III
b. I, II
C. Lonely II
D. LOnely I
e. Lonely III
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- A source with equivalent noise temperature Te = 850 K is followed by a cascade of three amplifiers shown in Table 1.0. Assume a bandwidth is 40 kHz, evaluate the overall noise factor and noise figure of the cascade. In order to get better performance of the amplifier system, you may try to re-arrange the amplifier units. Please prove and justify which arrangement is the best to be chosen.For the cascaded amplifier of the figure below, calculate the input impedance of the first stage, output impedance of the second stage, total voltage gain, and the output voltage if Vs=1 mV. Show the details of your work.Given r_e = 10 Ω, β = 200, A_v = -160, and A_i = 19 for the collector-feedback network shown below, determine a) R_C; b) R_F; and, c) V_CC .
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