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engineering
electrical engineering
Questions and Answers of
Electrical Engineering
Find V0 in the circuit shown.
Find the average power dissipated in the 4-Ohm load resistor.
Determine the mid-band (where the coupling capacitors can be ignored) gain of the single-stage amplifier shown.
Given the network in Figure P8.1 (a) Find the equations for va(t) and vb(t) (b) Find the equations for vc(t) and vd(t)
Given the network in Figure P8.2 (a) write the equations for va (t) and vb (t) and (b) write the equations for vc (t) and vd (t).
Given the network in Figure P8.3 (a) write the equations for va(t) and vb(t) and (b) write the equations for vc(t) and vd(t).
Given the network in Figure P8.4 (a) write the equations for va(t) and vb(t) and (b) write the equations for vc(t) and vd(t).
Find the voltage gain Vo/Vs of the network shown in figure P8.5
Find the voltage gain Vo/Vs of the network shown in figure P8.6
Find Vo in the network in Figure P8.7
Given the network in Figure P8.8 find Vo
Find Vo in the circuit in Figure P8.9
Find Vo in the network in Figure P8.10
Find Vo in the network in Figure P8.11
Find Vo in the network in Figure P8.12
Find Vo in the circuit in Figure P8.13
Find Io in the circuit in Figure 8.14
Write the mesh equations for the network in Figure P8.15
Write the mesh equations for the network shown in Figure P8.16
Write the mesh equations for the network shown in Figure P8.17
Write the mesh equations for the network shown in Figure P8.18
Write the mesh equations for the network shown in Figure P8.19
Find Vo in the network in Figure P8.20
Find Vo in the network in Figure P8.21
Find Vo in the network in Figure P8.22
Find Vo in the network in Figure P8.23
Find Vo in the network in Figure P8.24
Find Vo in the network in Figure P8.25
Find Vo in the network in Figure P8.26
Find Vo in the network in Figure P8.27
Find Vo in the network in Figure P8.28
Find Vo in the network in Figure P8.29
Find Io in the circuit in Figure P8.30
Find Vo in the circuit in Figure P8.31
Find Io in the circuit in Figure P8.32
Find Vo in the network in Figure P8.33
Find Vo in the network in Figure P8.34
Determine the impedance seen by the source in the network shown in Figure P8.35
Determine the impedance seen by the source in the network shown in Figure P8.36
Determine the input impedance Zin of the circuit in Figure P8.37
Determine the input impedance Zin in the network in Figure P8.38
Given the network shown in Figure P8.39 determine the value of the capacitor C that will cause the impedance seen by the 240 V voltage source to be purely resistive. f = 60Hz.
Analyze the network in Figure P8.40 and determine if a value of Xc can be found such that the output voltage is equal to twice the input voltage.
Two coils in a network are positioned such that there is 100% coupling between them. If the inductance of one coil is 10 mH and the mutual inductance is 6mH, compute the inductance of the other coil
The currents in the magnetically coupled inductors shown in Figure P8.42 are known to be i1(t)=8cos(377t-20)mA and i2(t)=4cos(377t-50)mA. The inductor values are L1 = 2H, L2 = 1H, and k=0.6.
Determine the energy stored in the coupled inductors in Problem 8.42 at t=1ms
If L1 = L2 = 4H and k = 0.8, find i1(t) and I2(t) in the circuit in Figure P8.44
Determine the energy stored in the coupled inductors in the network in P8.44
Find all currents and voltages in the network in figure P8.46
Determine I1, I2, V1, and V2 in the network in Figure P8.47
Determine Vo in the circuit in Figure P8.48
Determine I1, I2, V1 in the network in Figure P8.49
Determine I1, I2, and V1 in the network in Figure P8.50
Determine I1, I2, V1, and V2 in the network in Figure P8.51
Determine the input impedance seen by the source in the circuit in Figure P8.52
Determine the input impedance seen by the source in the circuit in Figure P8.53
Determine the input impedance seen by the source in the network shown in Figure P8.54
Determine the input impedance seen by the source in the network shown in Figure P8.55
The output stage on an amplifier in an old radio is to be matched to the impedance of a speaker as shown in Figure P8.56. If the impedance of the speaker is 8 ohms and the amplifier requires a load
Given that Vo = 48
If the voltage source Vs in the circuit of Problem 8.57 is 50
Determine Vs in the circuit in Figure P8.59
Determine Is in the circuit in Figure P8.60
Find the current I in the network in Figure P8.61
Find the voltage Vo in the network in Figure P8.62
Find Vo in the network in Figure P8.63
Find Vo in the circuit in Figure P8.64
Find Vo in the circuit in Figure P8.65
In the circuit if Figure P8.66, if Ix = 645A, find Vo.
In the network in Figure 8PFE-1 find the impedance seen by the source.
In the circuit in Figure 8PFE-2, select the value of the transformers turns ratio n = N2/N1 to achieve impedance matching or maximum power transfer. Using this value of n calculate the
In the circuit in Figure 8FE-3, select the turns ratio of the ideal transformer that will match the output of the transistor amplifier to the speaker represented by the 16-Ohm load.
Find the power absorbed in the 1-Ohm load in the network in Figure 8PFE-4
Determine the average power absorbed by the 1-Ohm resistor in the network in Figure 8PFE-5.
Determine the equations for the current and the instantaneous power in the network in Figure P 9.1
Determine the equations for the voltage and instantaneous Power in the network in Figure P 9.2
Find the average power absorbed by the network shown in Figure P 9.3
Given the network in Fig. P 9.4, find the power supplied and the average power absorbed by each element.
Given the circuit in Fig. 9.5, find the average power supplied and the average power absorbed by each element.
Compute the average power absorbed by the elements to the right of the dashed line in the network shown in Fig. P 9.6
Given the network in Fig. 9.7, determine which elements are supplying power, which ones are absorbing power, and how much power is being supplied and absorbed.
Given the circuit in Fig P 9.8 find the average power absorbed by the network.
Given the network in Fig 9.9, find the average power supplied to the circuit.
Given the circuit in Fig. P 9.10, determine the amount of average power supplied to the network.
Determine the average power absorbed by the 4-ohms resistor in the network shown in Fig. P 9.11
Given the network in Fig. P 9.12, show that the power supplied by the source is equal to the power absorbed by the passive elements.
Calculate the average power absorbed by the 1-ohms resistor in the network shown in Fig. P 9.13
Determine the average power absorbed by the 4- resistor in the network shown in Fig 9.14
Find the average power absorbed by each element in the network shown in Fig. P 9.15
Determine the average power supplied to the network shown in Fig. P 9.16
Determine the average power supplied to the network in Fig 9.17
Find the average power absorbed by the 2-ohms resistor in the circuit shown in Fig 9.18
Given the network in Fig P 9.19 determine which elements are supplying power, which ones are absorbing power, and how much power is being supplied and absorbed.
Determine the impedance ZL for maximum average power transfer and the value of the maximum power transferred to the for the circuit shown in Fig P 9.20
Determine the impedance ZL for maximum average power transfer and the value of the maximum average power transferred to ZL for the circuit shown in Fig P 9.21
Determine the impedance ZL for maximum average power transfer and the value of the maximum average power absorbed by the load in the network shown in Fig P 9.22
Determine the impedance ZL for maximum average power transfer and the value of the maximum average power absorbed by the load in the network shown in Fig P 9.23
Determine the impedance ZL for maximum average power transfer and the value of the maximum average power absorbed by the load in the network shown in Fig P 9.24
Determine the impedance ZL for maximum average power transfer and the value of the maximum average power absorbed by the load in the network shown in Fig P 9.25
Repeat problem 9.24 for the network in Fig P 9.27
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