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Circuits

Derive expression and solve v and vout in polar

(See attached file for full problem description) --- Refer to diagram (attached) 1.Derive an algebraic expression for the transfer function of the circuit assuming that no external load is connected between terminals A&B. Simplify the expression as far as possible but do not attempt to rationalise it. Refer to the two rea

Circuit variable problem

One method of checking calculations in volving interconnected circuit elements is to see that the total power delivered equals the total power absorbed... Please see attached.

Transient Power Analysis in Electric Circuits

The voltage and current at the terminals of the circuit elements in Fig 1.5 are zero for t<0 nad t<40s. In the interval between 4 and 40s the expressions are: (a) At what instant of time is the power being delivered to the circuit element maximum? (b) What is the power at the time found in part (a) (c) At what instant of t

Circuits problem

In electronic circuits it is not unusual to encounter currents in the microamperage range. Assume a 20 micro amp current, due to the flow of electrons. a) What is the average number of electrons per second that flow past a fixed reference cross section that is perpendicular to the direction of flow. b) Compare the size o

Transformer Load Impedance

In the following circuit find Ix and Iy by replacing the transformer and load at points x, x with the transformer load impedance.

Logic Circuit with 3D Flip Flops

Consider the attached circuit. Assume that the three states are initially at the 0 logic level. Which of the given tables is true for the function performed by this circuit? The leftmost column represents the clock pulses. Initially there is no pulse (1st row). As the first clock pulse arrives the resulting change of state is sh

Circuit analysis and resistance

Consider the following circuit. As shown, lossy current source drives 1Kohm load by means of a voltage divider circuit. It is desired to have 5mA flow through the load. R1 and R2 can be assigned any value. Part One: What is the smallest value that R2 can have? Part Two: What is the largest value that R1 can have?

Circuit Analysis with Sinusoidal Source Voltage

Consider the attached circuit. The sinusoidal source voltage is Vs(t)=20sin(2 pi t). The diode is ideal. What would the correct sketch of the source voltage and load voltage look like as a function of time?

Transformers

A 4:1 step-down transformer uses a 60Vac source on the primary windings. There is 120mA flowing through the load resistance on the secondary windings. How do I find the resistive load?

Resistance

How would I find the equivalent resistance R_ab of the following circuit?

Interpretation and Reasoning of Electric Fields

1) If a charge of 8uC is at the top of the y-axis and -1.2uC is at the origin. The distance between the is 3cm. a third charge 7uC is on the x-axis. The distance between the second and third charge is 4cm. find a) the electric field at the center of the triangle. b) The electric pote

Three Zones of a Single Phase Circuit

Three zones of a single-phase circuit are identified in the figure attached. The zones are connected by two transformers T1 and T2, whose ratings are also shown in the same figure. Using base values of 20kVA and 115 volts in zone-3 calculate the per-unit impedances. Neglect the transformer winding resistances and the shunt admit

Virtual Circuits

The following design problem concerning implementation of virtual circuit service. If virtual circuits are used internal to the subnet, each data packet must have a 3-byte header, and each router must tie up 8 bytes of storage for circuit identification. If datagrams are used internally, 15-byte headers are needed, but no router

Question about Electrical Energy Conversion

A 100 kVA, 60 Hz, 7200/480 V, single-phase transformer has the following parameters (all expressed in ohms): RHV = 3.06 RLV = 0.014 XHV = 6.05 XLV = 0.027 Xm,HV = 17,809 Re,HV = 71,400 The transformer supplies a load that draws rated current at 0.75 power factor lagging at 480 V at the load. Sketch the approximate eq

Please, show me how you got the answers and give me the answers. Thanks

1. A series RL circuit containing a 0.17-H inductor has a time constant of 0.13 s. What is the resistance in the circuit? 2. A 1000-ohm's resistor is joined in series with a 400-mH inductance and a 12-V battery. (a) What is the time constant of the circuit? (b) How long will it take after the circuit is completed for voltage

Charge flow from one capacitor to another

Why and how does charge flow from one capacitor to another capacitor when the two are connected to each other by a conducting wire? I am not able to understand that; why and how does negative charge flow from a capacitor having lower potential difference between its plates to a capacitor having higher potential difference betwe

Undistorted Sinusoidal Signals in a Diode Circuit

In the diode shown, the diodes are ideal except that each is modeled by a voltage source of 0.5V in series with a (diode) resistance of rd = 20, when forward biased. A sinusoidal signal Vs with input impedance Rs=100 is connected to the diode circuit. Determine the maximum value of Vs such that Vo remains sinusoidal, with no dis

Define appropriate resistor values in a battery-charger circuit

The attached file shows the circuit in question along with information about the components (zener diode, op-amp, and BJT transistor). Problem Statement: The simple circuit shown below is a battery-charge circuit. It operates from a DC power supply having Vcc=22V. The fully charged NiCd battery pack exhibits Vb=12.08V. Opera

Seal-In Circuit with Internal Relay Control

Problem involves a seal-in circuit with an internal relay control. Please see attached for description. I'd like to see the ladder logic diagram as to how the problems are to be diagrammed. I had only two lines of ladder logic for part a, but I think there may be more. Can anyone give me a firm understanding on this?

Develop a state space model of a current-fed series RC circuit.

Develop a state space model of a current-fed series RC circuit. Use Simulink to simulate the dynamic behaviour of a current-fed series RC circuit. What happens when you do a parameter analysis of this model? Explain your observations! The attachments are: A model of a voltage - fed series RC circuit And a model of the RC

Bias stable circuit design with capacitors

For the circuit, design a bias stable circuit such that Icq=.8mA and Vceq=5V. Let Bf=100. Using the results, determine the percentage change in Icq if Bf is in the range of 75<=Bf<=150. Repeat this if Re=1kOhms. Rth=.1(1+b)re=.1*101*.5Kohms=5050 Ohms I can do KVL around the b-e loop to find Vth, but how do I split the two

Circuit Output

For the circuit in Fig. P3.105, each utilizing an ideal diode(or diodes), sketch the output for the input shown. Label the most positive and most negative output levels. Assume CR.>>T. Please see the attached document.

Design a logic circuit

Design a logic circuit with 4 inputs and an output. Please see the attached MS Word file for the complete problem and table.

Anesthetic vaporization and controlled delivery

In a vaporizer a volatile anesthetic liquid is evaporated into a gas which eventually flows to the patient. A lot of attention is directed toward temperature maintenance in order to assure that the patient receives the proper concentration. Why is temperature control important? What methods can be used to actually control the

Fermi Energy and Circuits

REVISION QUESTIONS Please could you provide detailed answers from the questions below; 1. a silicon n-p-n bipolar junction (BJT) is designed with emitter, base and collector doping levels of 1019 cm-3 , 1015 cm-3 and 5 × 1017 cm-3 , respectively. Assuming the intrinsic carrier concentration (ni) in silicon to be 101