Describe a graph abstraction (e.g., the world-wide-web can be modeled as a graph where vertices are web pages and edges are hot-links). Describe one not discussed in the course material. For this graph, describe the meaning of a shortest hop path, diameter, and degree.

Let A be a three-bit unsigned number. Use a seven-bit adder (and NOT gates, as necessary) to design a circuit that calculates the following operations. Note that the output may be assumed as unsigned, unless it is possible for the operation to produce a negative answer, in which case, the output must be correct in 2’s complement:

W = 3A + 1

X = 2A – 17

Y = 40A + 6

Z = 32 – 4A

Calculate the energy per bit per noise power density where the signal power is 10 Watts and the bit is 10 Mbps in an environment of 27 degree celcius?

Q1: How to draw phasor diagrams for a transformer to find an unknown value?

Q2: What are the circuit parameters for an open circuit test and short-circuit test given the current, voltage, and power for these test?

Q3:How can we relate the ratios(the winding, current, and voltage relationship) with the circuit parameters discussed above?

Q4: Explain what it means to find high side and low side in a practical transformer.

1.give some examples about I/O components in an embedded system

2.Describe hardware components for a mini embedded system with OS

3.What are embedded system basic requirements?

4.What is ARM processor architecture?

With appropriate waveforms and a few sentences describe how a grid connected 4 quadrant VSCC inverter can supply active power, capacitive reactive power and inductive reactive power and where this may be useful in grid power quality control.

what is 5s + 1s and how can apply in process

An FIR system produced an output y[n] as given below for an input x[n] = {1,1,1,1}, y[n] = {6,11,15,18,14,10,6,3,1}. Find the FIR system.

Use bk, d(n-k) equation if applicable. Thanks!

Design an up/down counter with four states (0, 1, 2, 3) using clocked JK flip flops. A control signal x is used as follows: When x = 0 the machine counts forward (up), when x = 1, backward (down). Simulate using MultiSim and attach a simulation printout.

Please address the following:

1. State Table
2. State Diagram
3. Flip Flop Excitation Tables
4. K-Map Simplification and Resulting Diagram
5. MultiSim Simulation

1. Two electric charges, the first value + 3Q and the second value + 2Q are separated by a known distance d. What load and at what distance from the first load should a third collinear load be placed with the other two, so that the three-load system is in equilibrium?

2. What is the force exerted on the load Q of the corner of a cube of side a, if in each corner of the cube there are loads of value Q (In total there are 8 loads in the cube)?

3. At point (0, a) there is a load + 2Q and at point (b, 0) a load of value -3Q. What is the value of the electric field (as a vector) at the following points: (a, a), (b, b), (0,0)?

Consider the following discrete-time system: y[n] = 100 x[n] cos(0.45πn + 0.5π)

(a) Determine if the system is linear, time-invariant, causal and stable. Justify your answers.

(b) Find the impulse response h[n] for the system and sketch the waveform.

(c) Draw the system block diagram using adder, multiplier and delay elements.

Solar cell A uses a semiconductor with a band gap of 1.1 eV. Solar cell B uses a semiconductor with a band gap of 2.0 eV. Either cell is thick enough to absorb all the light above its band gap energy. Both cells can work together simultaneously with one on top of the other to operate more efficiently in a small space. But which cell has to be on top (first to receive sunlight) for both to work simultaneously and why? Also, in relation to the solar energy spectrum, which cell has the more optimal band gap for photovoltaic applications if only a single cell can be used (say for cost reasons)?

10. You are at 76° west longitude, 37° north latitude, and observe the sun to rise at 05:10:20 hours local clock time. Your friend is at 87° west longitude and 49° north latitude. What will be your clock time when she sees the sun rise?

Two reservoirs R 1 and R2, the level of each of which is controlled by a detector of
high level (a for R1, b for R2) and a low level detector (c for R1, d for R2). When these sensors detect the presence of the liquid they are at level 1.
 
There are three LEDs V1, V2, V3, which operate under the following conditions:
V1 = 1 if both tanks are full.
V2 = 1 if both tanks are empty.
V3 = 1 in all other cases (tank half full or full one empty ...).
 
A number of combinations are technologically impossible, the outputs V1, V2,
V3, will take in these cases an indifferent value (X).
 
1. Establish the truth table of this system.
2. Determine simplified logic equations using Karnaugh's tables.
3. Give the V1, V2, V3 circuits with doors.