Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

problem1) State with reasons whether the following statements are True or False.

i) The problem posed by large antenna size in case of audio communication can be solved by amplification process.

ii) 20 dB-Hz bandwidth corresponds to 1000 Hz.

iii) The load impedance of an open ended transmission line is less than 400?.

iv) The AM and FM demodulators are essentially the same except for their frequency bandwidth.

v) FDM and WDM are essentially the same.

vi) The only advantage of satellite radio transmission is its digital signal handling capacity.

vii) H-plane T structure can be used for summing two signals.

viii) The best method of joining the two optical fibre is soldering.

ix) Memory in a computer is a peripheral device.

x) At present there are only 7 generic top-level domains names in use.

problem2)

a) Hindi language has about 50 alphabets (10 vowels and 40 consonants). Show that efficiency of a binary coding system used to represent them is more than that used for coding the English language alphabets.

b) An analog triangular 1 KHz signal is sampled at 8 kbps. Draw the essential circuit and output waveform (with timescale), if peak signal amplitude is 4mV.

problem3)a) What is varactor diode? How could it be used in the frequency modulator circuit?

b) Which type of shift keying technique is used in two tone modulation for code transmission? How is it beneficial than the other type of keying?

problem4) a) Describe the working of electronic exchange with the help of a block diagram.

b) What is CDMA? Describe how same radio frequency could be used by multiple users in this case.

problem5)a) In a radio transmitter an antenna of 100?load resistance is to be connected to a power output stage. The supply voltage is 20V. Design a matching circuit (L-network) to deliver 5W RF power output at 25 MHz.

b) Compare the analog and digital television.

problem6)a) Describe the construction of a tunnel diode used in microwave circuits. Why is it necessary to have heavy doping?

b) Compare the strategies used for data compression in communication networks.

problem7)a) prepare the step-wise instructions to add the numbers stored at memory locations A and B, then subtract number stored at C from this result and store the answer in memory location D.

b) Compare the different network topologies on the basis of their ruggedness, complexity and cost.

problem8)a) Justify the need of standard network protocols. Compare the OSI with TCP/IP reference models.

b) Describe, how the Bluetooth connects different devices. How is the interference between devices prevented

Physics, Academics

  • Category:- Physics
  • Reference No.:- M92883
  • Price:- $100

Priced at Now at $100, Verified Solution

Have any Question? 


Related Questions in Physics

In the circuit the capacitor is fully charged when switch s

In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time needed for the potential energy stored by the circuit to be equally distributed between the capacitor and inductor. The capacitan ...

Calculate the necessary torque of a primary machine and the

Calculate the necessary torque of a primary machine and the maximum rated power of an IG fed at 6.0 kV, 60  Hz, 4 poles, R 1  = 0.054 Ω, R 2  = 0.004 Ω, X 1  = 0.852 Ω, and X 2  = 0.430 Ω. What is the rated mechanical po ...

A certain sound has an intensity of A certain sound has an intensity of 9.195275×10 -4

A certain sound has an intensity of 9.195275×10 -4  W/m 2  2.33 m from its source. What is the power emitted by this source in watts? Express your result to three significant digits and in scientific notation. Hint: The ...

Eriks puzzle in a stripped-down version of conways game of

Erik's puzzle. In a stripped-down version of Conway's game of life, cells are arranged on a square grid. Each cell is either alive or dead. Live cells do not die. Dead cells become alive if two or more of their immediate ...

Fnd the equations of the tangent lines to the graph of fx

Find the equations of the tangent lines to the graph of f(x) = sin x at x = 0 and at x = π/3. Use each tangent line to approximate sin(π/6). Would you expect these results to be equally accurate, since they are taken equ ...

Imagine fitting a mixture of ten gaussians to data in a

Imagine fitting a mixture of ten Gaussians to data in a twenty-dimensional space. Estimate the computational cost of implementing inferences for this model by enumeration of a grid of parameter values.

1 the practical depth limit for a suited diver is about 185

1. The practical depth limit for a suited diver is about 185 m. What is the gage pressure in sea water at that depth? The specific gravity of sea water is 1.025. 2. Matter is attracted to the center of Earth with a force ...

Tectonic plates are large segments of the earths crust that

Tectonic plates are large segments of the Earth's crust that move slowly. Suppose one such plate has an average speed of 4.8 cm per year. (a) What distance does it move in 50 seconds at this speed? (b) What is its speed ...

An accelerating sports car goes from 0 mph to 60 mph in

An accelerating sports car goes from 0 mph to 60 mph in five seconds. Its velocity is given in the following table, converted from miles per hour to feet per second, so that all time measurements are in seconds. (Note: 1 ...

A rock of 350 kg is found at the top of a mountain that is

A rock of 350 kg is found at the top of a mountain that is 1250-m high. Find the potential energy with respect to the bottom of the mountain (g = 9.8 m/s2)

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen