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For the cascaded current amplifier shown below, the parameters are: Rs = 20 kΩ, Ro1 = Ro2 = Ro3 = 4.7 kΩ, Ri1 = Ri2 = Ri3 = RL = 100 kΩ, and Ais1 = Ais2 = Ais3 = 100. Find (a) the effective current gain Ai = io/is, (b) the overall voltage gain Av = vo/vs, and (c) the power gain Ap = PL/Pi. Give the answers in dB unit.

For the cascaded current amplifier shown below, the parameters are: Rs = 20 kΩ, Ro1 = Ro2 = Ro3 = 4.7 kΩ, Ri1 = Ri2 = Ri3 = RL = 100 kΩ, and Ais1 = Ais2 = Ais3 = 100. Find (a) the effective current gain Ai = io/is, (b) the overall voltage gain Av = vo/vs, and (c) the power gain Ap = PL/Pi. Give the answers in dB unit.

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For the cascaded current amplifier shown below, the parameters are: R s = 20 k Ω , R o 1 = R o 2 = R o 3 = 4.7 k Ω , R i 1 = R i 2 = R i 3 = R L = 100 k Ω , and A i s 1 = A i s 2 = A i s 3 = 100 .
Find (a) the effective current gain A i = i o / i s , (b) the overall voltage gain A v = v o / v s , and (c) the power gain A p = P L / P i .
Give the answers in d B unit.

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