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electrical engineering

Questions and Answers of Electrical Engineering

Determine the steady-state voltage vo(t) in the circuit shown in figure if the input signal is shown infigure.
Find the average power absorbed by the network in figureif
Find the average power absorbed by the network in figureif
Determine the Fourier transform of the waveform shown infigure.
Derive the Fourier transform for the following functions:(a) f(t) = e –2t cos 4tu (t)(b) f(t) = e –2t sin 4tu (t).
Show that
Find the Fourier transform of the function f(t) = 12e – 2|t| cos 4t
Use the transform technique to find vo(t) in the network in figure a if(a) i(t) = 4(e –t – e – 2t) u (t) A and(b) i(t) = 12 cos 4t A
The input signal to a network is vi(t) = e –5t u(t) V. The transfer function of the network is H (jw) = 1/(jw + 4). Find the output of the network vo(t) if the initial conditions are zero.
Determine vo (t) in the circuit shown in figure using the Fourier transform if the input signal is is(t) = (e ? 2t + cos t) u (t) A.
The input signal for the network in figure is vi(t) = 10e ? 5t u(t) V. Determine the total 1-? energy content of the output vo(t).
Determine vo(t) in the circuit shown in figure using the Fourier transform if the input signal is vs(t) = cos (7 x 107t) + cos (1 x 105t)V.
Compute the 1-Ω energy content of the signal vo(t) in figure in the frequency range from w = 2 to w = 4 rad/s.
Determine the 1-Ω energy content of the signal vo(t) in figure in the frequency range from 0 to 1 rad/s.
Compare the 1-? energy at both the input and output of the network in figure for the given input forcing function ii(t) = 2e ? 4t u(t) A.
The waveform shown in figure demonstrates what is called the duty cycle; that is, D illustrates the fraction of the total period that is occupied by the pulse. Determine the average value of
Given the waveform in figure, determine if the trigonometric Fourier coefficient an has zero value or nonzero value, and why. a. ?n = 0 for n even due to half-wave symmetry b. ?n = 0 for all n due to
Determine the first three nonzero terms of the voltage vo?(t) in the circuit in figure. If the input voltage vs(t) is given by the expression. a. 8.54 cos (2t + 26.57o) + 4.63 cos (4t + 14.04o) +
Given the waveform in figure, describe the type of symmetry and its impact on the trigonometric Fourier coefficient bn. a. bn = 0 for n even due to odd symmetry; bn is nonzero for n odd b. bn is
Find the average power absorbed by the network in figure, if vs(t) = 20 + 10 cos (377t + 60o) + cos (1131t + 45o) V a. 175.25 W b. 205.61 W c. 150.36 W d. 218.83
Find the average value of the waveform shown in figure. a. 6 V b. 4 V c. 8 V d. 2V
Find the Y parameters for the network shown in figure and then find the output voltage of the two-port when a 4mA current source is connected to the input port and a 4k? load is connected to the
Find the Z parameters for the circuit shown in figure, and then find the current in a ?j4? capacitor connected to the output port when a 6 ?0? V source is connected to the input port.
Find the hybrid parameters for the circuit shown in figure. What conclusion can be drawn from thisresult?
Find the transmission parameters of the network in figure by treating the circuit as a cascade interconnection ofelements.
Check the validity of the answers obtained in problems 16.1 and 16.4 by using the parameter conversion formulas to convert the Y parameters in problem 16.1 to the transmission parameters in problem
Given the two networks in figure, find the Y parameters for the circuit in (a) and the Z parameters for the circuit in(b).
Find the Y parameters for the two-port network shown infigure.
Find the Y parameters for the two-port network shown infigure.
Determine the Y parameters for the network shown infigure.
Find the Z parameters for the two-port network infigure.
Determine the admittance parameters for the network shown infigure.
Find the Y parameters for the two-port network infigure.
Find the Z parameters for the network in figure.
Find the Z parameters for the two-port network shown in figure and determine the voltage gain of the entire circuit with a 4-? load attached to the output.
Find the Z parameters for the two-port network shown infigure.
Find the voltage gain of the two-port network in figure. If a 12-kΩ load is connected to the output port.
Find the input impedance of the network in figure.
Find the Z parameters of the two-port network infigure.
Determine the Z parameters for the two-port network infigure.
Draw the circuit diagram (with all passive elements in ohms) for a network that has the following Yparameters:
Draw the circuit diagram for a network that has the following Zparameters.
Show that the network in figure does not have a set of Y parameters unless the source has an internalimpedance.
Find the hybrid parameters for the network infigure.
Consider the network in figure. The two-port network is a hybrid model for basic transistor. Determine the voltage gain of the entire network, V2/VS, if a source VS with internal resistance R1 is
Determine the hybrid parameters for the network shown infigure.
Find the ABCD parameters for the networks infigure.
Find the transmission parameters for the network infigure.
Find the transmission parameters for the network shown in figure.
Find the ABCD parameters for the circuit in figure.
Determine the transmission parameters for the network infigure.
Find the transmission parameters for the circuit infigure.
Given the network in figure, find the transmission parameters for the two-port network and then find Io using the terminalconditions.
Draw the circuit diagram for a network that has the following Z parameters
Draw the circuit diagram (with all passive elements in ohms) for a network that has the following Yparameters:
Find the voltage gain V2/V1 for the network in figure using the ABCD parameters.
Find the input admittance of the two-port in figure in terms of the Y parameters and the load VL.
Find the voltage gain V2/V1 for the network in figure using the Z parameters.
Following are the hybrid parameters for a network. Determine the Y parameters for the network.
If the Y parameters for a network are known to be find the Zparameters.
Find the Z parameters in terms of the ABCD parameters
Find the hybrid parameters in terms of the Z parameters?
Find the Y parameters for the network infigure.
Determine the Y parameters for the network shown infigure.
Find the Y parameters of the two-port network in figure. Find the input admittance of the network when the capacitor is connected to the outputport.
Find the Z parameters of the network in figure by considering the circuit to be a series interconnection of two two-port networks as shown in figure.
Find the transmission parameters of the network in figure by considering the circuit to be a cascade interconnection of three two-port networks as shown infigure.
Find the ABCD parameters for the circuit infigure.
Find the Z parameters for the two-port network in figure and then determine Io for the specified terminalconditions.
Determine the output voltage Vo in the network in figure if the Z parameters for the two-portare.
Find the transmission parameters of the two-port in figure and then use the terminal conditions to computeIo.
A two-port network is known to have the following parameters: If a 2-A current source is connected to the input terminals as shown in figure, find the voltage across this current source. a. 36 V b.
Find the Thevenin equivalent resistance at the output terminals of the network in figure. a. 3 ? b. 9 ? c. 12 ? d. 6 ?
Find the input impedance Z (s) of the network figure (a) When the terminals B-B? are open circuited and (b) When the terminals B-B? are short circuited.
Find the input impedance Z(s) of the network infigure.
Use Laplace transforms and nodal analysis to find i1 (t) for t > 0 in the network shown in figure. Assume zero initialconditions.
Find vo(t), t > 0, in the network in figure using nodeequations.
Use Laplace transform to find v(t) for t > 0 in the network shown in figure. Assume zero initialconditions.
For the network shown in figure find io (t), t >0.
For the network shown in figure find vo(t), t > 0, using nodalequations.
For the network shown in figure, find vo(t), t >0.
Use nodal analysis to find vo(t), t > 0 in the network infigure.
Find vo(t), t > 0, in the network shown in figure using nodalanalysis.
Find vo(t), t > 0 in the network infigure.
For the network shown in figure find vo(t), t > 0, using loopequations.
Use mesh equations to find vo(t), t > 0 in the network infigure.
For the network shown in figure, find vo(t), t > 0 using meshequations.
Use loop equations to find io(t), t > 0 in the network shown infigure.
Given the network in figure, find io(t) t > 0, using meshequations.
Use loop analysis to find vo(t) for t > 0 in the network infigure.
Use mesh analysis to find vo(t), t > 0, in the network infigure.
Use super position to find vo(t), t > 0, in the network shown infigure.
Use source Transformation to find vo(t), t > 0, in the circuit infigure.
Use Thevenin?s theorem to find vo(t), t > 0, in figure.
Use Thevenin?s theorem to find vo(t), t > 0, in figure.
Use Thevenin?s theorem to find io(t), t > 0, in figure.
Use Thevenin?s theorem to determine io(t), t > 0, in the circuit shown in figure.
Find vo(t), t > 0 in the network in figure using Thevenin?s theorem.
Use Thevenin?s theorem to find vo(t), t > 0, in the network in figure.
Use Thevenin?s theorem to find vo(t), t > 0, in the network in figure.

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