Consider the circuit shown below which is a simplified model of a source delivering ap- proximately 2.5 MW to a load. Energy is carried between the source and the load by two conductors that each have resistance of 8 2. A bird lands on the "upper" conductor about three-quarters of the way toward the load so that there is 6 12 between the bird and the source and there is 2 52 between the bird and the load. (a) Using the circuit as drawn, find the voltage at the bird's head. (b) The bird and the upper conductor form an inverted T which can be converted to a A. Redraw the circuit after performing this conversion. (c) The conversion effectively makes the bird's body disappear, but the top of its head remains right where it was. Using the A arrangement of resistors, show that the voltage at the top of the bird's head is the same as with the T arrangement. Head 50 kV Bird 692 www www 500 2ドル 892 www 292 Load <1kQ

Q4. The source current in the circuit shown is in Figure 3a) What impedance should be connected across terminals a,b for maximum average powertransfer?b) What is the average power transferred to the impedance in (a)?c) Assume that the load is restricted to pure resistance. What size resistor connected across a,bwill result in the maximum average power transferred?d) What is the average power transferred to the resistor in (c)?v

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resis to r in du cto r wired are in series of an d an i deal an battery. The in ductance of the in ductorrs 8.0 mH. and the resis tance of the battery is connected to the resirtor 2.0s2. Assume the Hle How long does it ta ke the and inductor at t>0. of its final steady ete value? Current to reach half

You have developed an idea for using a poly Si surface‐ micromachined cantilever. Initially, you designed a process flow for creating this simple structure, and the process flow is detailed in the figure below. ( cross section view and top view)There are several critical errors with this process (things that won’t work or won’t produce the result). Please find the critical errors in this process flow and, where possible, suggest alternate approaches. Do not worry about the accumulation of errors, but rather treat each step assuming that the structure up to that step could be created.This structure is actually quite simple to make. Develop a simpler process flow and associated masks to create the final structure. Be sure to show cross‐sectional and planar views of all key steps in the process.

Consider a circuit with a pull-down resistor in parallel to a component. Compare a resistor with higher resistance value to a resistor with lower resistance value in the parallel path. Which resistor value will pull down the potential more, relative to ground, at the high side of the component? They will pull the potential di [ Select] They will pull the potential down equally, because resistors in series have equal voltage across them, regardless of resistance value. The lower-value resistor. There is not enough information to correctly answer this question. The higher-value resistor.

20 What is countertorque a measure of? PRACTICAL APPLICATIONS ou are working as an electrician in a large steel manufacturing plant, and Y in the of doing preventive maintenance on a large DC you are generator. You have megged both the series and shunt field windings and found that each has over 10 M2 to ground. Your ohmmeter, however, indicates a resistance of 1.5 2 across terminals S, and S,. The ohmmeter indicates a resistance of 225 N between terminals F, and F2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer. process

I dont understand phase shift and lags?

Mesh current methods can greatly reduce the calculations as compared to Kirchhoff’s voltage and current laws in circuits with multiple branches. Refer to the textbook reading and the lecture for this week to answer the following post. Describe, step-by-step, the steps required to calculate all currents and voltage drops in a DC network using the Mesh Current Method.

for a resistance and capicitance in a series with a voltage source, show that it is possible to draw a phasor diagram for the current and all voltages from magnitude measurment of these quantities only .illustrate your answer graphically

NOTE: Polar form for Voltage & Current. Rectangular form for Impedance Find the total impedance of the circuit, total power (apparent) delivered by the current source, Draw the phasor diagram of the voltage and current at the source, the current passing through the R2 and L1 branch, Draw the phasor diagram of the voltage and current at the R2 and L1 branch. Also, is the circuit inductive, capacitive, or neither (resistive)?