shahwaqas

Discuss the applications of WLL in a cellular network.  

Problem 4 - (15-Points) Suppose that the incandescent light bulb is used for lighting
whose efficiency is 0.034 . (a) Also suppose that we provide 400000 J of energy in an
hour to produce 45 Wh of energy in a power plant that uses coal. Calculate the efficiency
of the power plant. (b) Suppose that the transmission lines that use to transmit electric
energy to the houses looses 8 % of the electric energy on the way to houses. What is the
efficiency transmission lines? (c) Calculate the total eficiency of the electric system from
power plant upto including incandescent light bulb. (d) Suppose that for such system,
100W of elctrical energy is supplied, how much energy will be used and lost in kWh?

 (a) What is PV cell, PV module, & PV array? (b) What are the
three main PV systems ? (c) What is the hybrid system? Explaine briefly.

 (a)What are the components of typical stand-alone ( off-grid)
system? (b) What are the components of typical grid connected( on-grid) system?
(c) Which system do you prefer, and why?

Given an 8051, an Arduino UNO, and an ARM Cortext M4 microcontroller boards with no external memory attached, select which board is more suitable for each of the following applications. Assume that the 8051 is the cheapest, followed by Arduino UNO, and ARM Cortext M4 being the most expensive. Justify your answer for each.

Consider that you need to build a voice recognition system for a security door at your home. The system needs to separate your voice frequency which ranges between 𝝅/2 and 𝟑𝝅/2.

You need to design the filter that can separate the frequency by following below steps:

1. Determine the type of filter.
2. Determine the Upper Cut off frequency and Lower Cut off frequency.

III. Calculate the impulse response of the filter in frequency domain.

1. Sketch the magnitude and phase plot of the frequency response of the filter.

Micro-programming systems - ATmega 328P microcontroller

Simple program to change the state of 3 LEDs over the ATmega 328P microcontroller. The question is in the attached pdf file.

Alternators can be overloaded by 10 percentage for 10-15 minutes, this

a. Steady state voltage stability will get affected

b. may reduce the stability limit

c. may disturb Nose point

d. may lose Angular stability 

Alternators can be overloaded by 10 percentage for 10-15 minutes, this

a. Steady state voltage stability will get affected

b. may reduce the stability limit

c. may disturb Nose point

d. may lose Angular stability 

What is an NPN transistor?

What is electricity ?

what is reliability

Simplify 

(X+y). (X+y) '+((X'y') +X')'

• Construct and test a 1-bit, and a four-bit adder using IC 7483.

Materials:

7483 4-Bit Adders

Explain the importance of Traffic Engineering in Telecommunications and discuss the parameters of tele-traffic 

Explain the importance of Traffic Engineering in Telecommunications and discuss the parameters of tele-traffic

The voltage across a 5 μF capacitor is known to be Vfort≥0 , where t is in seconds.

Part B

Find the power at the terminals of the capacitor when t = 185 μs .

Part D

Find the energy stored in the capacitor at t = 185 μs

Part E

Find the time when the maximum energy stored in the capacitor occurs.

Part F

Find the maximum energy stored in the capacitor

find the total power developed in the circuit.

Which of the following statements are true about inflation?

a) It occurs when the overall level of prices increases.

b) Some prices may fall even when most others rise.

c) Some prices affect consumers more than others.

d) When in the 2-4% range, it can be a sign of a healthy economy.

What are the electrician schools and colleges in the US?

What is 0.9 as a fraction?

Explain fully, in your own words, what made Edison an inventor-entrepreneur rather than just an inventor.

What is the purpose of assistive media?What is the purpose of assistive media?
 
 

What is the difference between SaaS and Paas in terms of SDLC (software development lifecycle) processes?
2. What recruitment tools can companies use to attract, hire, and integrate talented individuals into the company culture as it relates to cloud processes in the SDLC?
3. What performance-management tools can companies use to evaluate public and private PaaS or SaaS models? Remember to outline the necessity for planning the SDLC growth and eventual replacement of the system deployed.

An armature-controlled DC motor drives an AC generator with resistive-inductive load. Develop
a state-variable description of this system assuming that it has one input, voltage applied to the
motor, and two outputs, current in the load and frequency of the voltage applied to the load

Which of the following are analog quantities , and which are digital?

An impulse can be increased by

1. Increasing the force

2. Decreasing the force

3. Decreasing the time interval

4. Decreasing the momentum change

Which of the following is not part of the kinetic molecular theory?

1. There is no attraction and repulsion between the gas molecules

2. Collisions between gas molecules are perfectly elastic.

3. The motion of the molecules is constant and random within the gas.

4. There is an attraction between the gas molecules and the wall of the container

Which are the effects of the high surface tension of water?

Moment of inertia is the angular analog of what?

Imagine that in part E8, you had placed the compass due East of the wire. Draw two vector diagrams of the magnetic field felt by this compass: One with the current OFF and one with the current ON. Each diagram should show the magnetic fields from any relevant sources as well as a vector indiacating the total magnetic field. For this problem, assume that the current flows upwards (in diagram it is out of page).

solve 124 = 3(4) ^2x-1 for x using logarithms

Hi, 

I am having some issues with some code I wrote for this problem:

“Write a function namedd calc that will evaluate a simple arithmetic expression. The input to your program will be a string of the form:
operand1 operator operand2
where operand1 and operand2 are non-negative integers and operator is a single-character operator, which is either +, -, or *. You may assume that there is a space between each operand and the operator. You may further assume that the input is a valid mathemat- ical expression, i.e. your program is not responsible for the case where the user enters gibberish.
Your function will return an integer, such that the returned value is equal to the value produced by applying the given operation to the given operands.
Sample execution:
calc("5 + 10") # 15
You may not use the split or eval functions in your solution.
Hint: the hard part here is breaking the input string into its three component. You may use the find and rfind functions to find the position of the first and last space, and then use the slice operator (that is, s[startindex:endindex]) to extract the relevant range of characters. Be careful of off-by-one errors in using the slice operator.
Hint: it’s best to test your code as you work. The first step should be to break the input string into its three components. Write a program that does that, have it print out the operator and the two operands on separate lines, and test it until you are convinced that it works. Then, modifying it to perform the desired mathematical operation should be straightforward. Test your program with several different inputs to make sure it works as you expect.”

Here is my code:

def calc(exp):

    operand1 = int(exp[:1])

    operand2 = int(exp[4:6])

    operator = exp[2:3]

    if(operator == "+"):

        addition = operand1+operand2

        return addition

    if(operator == "-"):

        subtraction = operand1-operand2

        return subtraction

    if(operator == "*"):

        multiplication = operand1*operand2

        return multiplication

print(calc("5 + 10"))

print(calc("4 - 8"))

print(calc("4 * 3"))

My code does not fully meet the criteria of this question. It only works for single digit numbers. How can I make my code work for any number? 

Like: 

“504 + 507”

”5678 + 76890” and so on? 

Thank you. Any help is appreciated. 

HOW I DO MY WORK WITH AIQ AND MOVIE

how does computer aid the community

the heating element of a clothes dryer has a resistance of 11 ohms and is connected across a 240 volts electrical outlet. what is the current in the heating element

1. An AM transmitter puts a carrier of 6 A into an antenna whose resistance is 52 V. The transmitter is modulated by 60 percent. What is the total output power?