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Electric Circuits
Fundamentals of Electric Circuits
313 SOLVED PROBLEMS
Question: 19.18
Design the LC ladder network terminated with a 1-Ω resistor that has the normalized transfer function H(s) = 1 / s³ + 2s² + 2s + 1 (This transfer function is for a Butterworth low-pass filter.) ...
Verified Answer:
The denominator shows that this is a third-order n...
Question: 19.17
Consider the common-emitter amplifier circuit of Fig. 19.59. Determine the voltage gain, current gain, input impedance, and output impedance using these h parameters: hie = 1 kΩ, hre = 2.5 × 10^−4, hfe = 50, hoe = 20 µS Find the output voltage Vo. ...
Verified Answer:
1. Define. In an initial look at this problem, it ...
Question: 19.16
Find the z parameters for the circuit in Fig. 19.52 at ω = 10^6 rad/s. ...
Verified Answer:
Notice that we used dc analysis in Example 19.15 b...
Question: 19.15
Find the h parameters of the network in Fig. 19.49. ...
Verified Answer:
From Eq. (19.16), (19.16):
\pmb{h} _{11}=...
Question: 19.14
Find the transmission parameters for the circuit in Fig. 19.46. ...
Verified Answer:
We can regard the given circuit in Fig. 19.46 as a...
Question: 19.12
Evaluate V2∕Vs in the circuit in Fig. 19.42. ...
Verified Answer:
This may be regarded as two two-ports in series. F...
Question: 19.11
Obtain the y parameters of the op amp circuit in Fig. 19.37. Show that the circuit has no z parameters. ...
Verified Answer:
Because no current can enter the input terminals o...
Question: 19.10
Find [z] and [g] of a two-port network if [T] = [10 1.5 S 2 Ω 4 ] ...
Verified Answer:
If A = 10, B = 1.5, C = 2, D = 4, the determinant ...
Question: 19.9
The ABCD parameters of the two-port network in Fig. 19.34 are [4 20 Ω 0.1 S 2] The output port is connected to a variable load for maximum power transfer. Find RL and the maximum power transferred. ...
Verified Answer:
What we need is to find the Thevenin equivalent [l...
Question: 19.8
Find the transmission parameters for the two-port network in Fig. 19.32. ...
Verified Answer:
To determine A and C, we leave the output port ope...
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