Exercise 1 A half-wavelength antenna is made of copper wire with conductivity a = 5.7 x 107 Sm . The antenna is 3 mm thick and 1.5 m long: (a) Calculate the skin depth of the material at the given frequency, the impedance of the antenna and its efficiency when radiating in free space. (b) In an attempt to reduce the impedance and increase efficiency, the antenna is made of a copper tube, 12 mm in diameter. What is the efficiency of the antenna? Assume current flows entirely within one skin depth, on the surface of the tube.

Q: What will be the modified form of the following codeword is odd parity scheme is used: Codeword:…

A: Parity bit: It is used as error detecting code. It is a bit which is added to a given string of…

Q: SUBJECT: COMMUNICATIONS 1: PRINCIPLES OF COMMUNICATION SYSTEMS FOR ENGINEERS TOPIC: Introduction to…

A: 1) What  are the challenges in electronics communication at present 2) what has been the role of EE…

Q: Give an example of a screen and an application generator

A:

Q: (a) The varable yesistoe in the CirCuit of Fil below ie adjnsted for Max power transer to Ro. Finod…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: * what ---- their phone number?( are, is, does, have) are is O does O have O

A: It is given that: What -------- their phone number?

Q: Ib) M&I 4.31. parts a, b, and d only 31. Determine the sequence x[n] corresponding to each of the…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Q.1. Find the following words in your dictionary. They are all derivatives or compounds of the word…

A: SOLUTION Given-->              COMPOUND OF "SOFT" word…

Q: Q.1 (B) [6 Marks]: Fill the blanks with one of the expressions from the box. After Immediately…

A:

Q: Q4/ An analog signal (20 cos 2r2000t) has been converted to digital signal using 8 bit A/D…

A: Analog to digital converter:  An analog to digital converter transforms the analog signals or data…

Q: Did you meet at the college .A a lot of .B anybody .C few .D

A: Given: Did you meet _______ at the college

Q: 2) what is aparallel circuit?what cct. Characteristics indicate that aparallel cct. Condition…

A: Since, you have posted multiple questions. We can answer only one of them. So, i solved Q. 2 for…

Q: what is (or are) the circuit for this truth table? (it could be one or more in the image attached)

A: Find the truth table for all the circuits and verify with the given truth table. [I] Consider the…

Q: Minimize the following Boolean function use five variables K-map 1. In SOP and draw the logic…

A:

Q: Q4/ Why the performance of multimode graded index is better than multimode step index? Q5/ Design…

A: According to guidelines solving only one question at a time4) To discussWhy the performance of…

Q: Digital communication system can handle a) Analog signals b) 1D signals c) 2D signals d) All of the…

A: The correct answer is OPTION D

Q: Which of the following is true for the Point of presence (P.O.P)? O None of these. O Itis interface…

A: which of the following is true for the point of presence (P.O.P )

Q: d. refer to (b), when the frequency of the test tone is changed to 7 kHz and the percentage of…

A: We need to find out the carrier swing for given modulation .

Q: Which is not an example of a receiver? a. microphone b. TV c. cellular telephone d. car stereo

A: TV and car stereo all receiving the signal for their operation hence ith is example od receiver.

Q: give; gave; given wear O weared; weared wore; worn

A: Base _ Wear

Q: Q20. i) Choose the type of cable used to connect the dish Antenna to Cable TV set top box Justify…

A: (i) Generally, coaxial cable is used for connecting dish antenna and set top box. This wire is…

Q: The best sentence to describe dead band/time of the sensor is _____________________________. a. the…

A: Theere are certain  characteristic which defines how good theinstrument is these characteristic are…

Q: • SuperNe liı. A moodle.nct.edu.om Convert the octal NUMBER 2713. 6464 to hexadecimal number showing…

A: Answer; 5CB.D34

Q: 1- In data presentation system, calibration is ___________________. a. putting a heavy object on…

A: In data presentation system, calibration is comparing the output of a measurement system and its…

Q: Determine the number of page table entries (PTES) that are needed for the following combinations of…

A:

Q: Which of the following statement is related to backward explicit congestion notification in frame…

A:

Q: 6. If a superheterodyne receiver is tuned to a desired signal at 1000 kHz and its conversion (local)…

A:

Q: 1. Are the following statements correct or wrong? a) Thyristors are used only for low voltage, low…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A report on the explanation of the types of flipflops, type SR with simple explanation, type Jk with…

A: A report on the explanation of the types of flip flops, type SR with simple explanation, type Jk…

Q: Call Completion Rate is defined as the ratio of the number of successful calls to the number of…

A: Call completion rate is defined as the ratio of the number of completed calls to the total number of…

Q: 1. Are the following statements correct or wrong? (a) Thyristors are used only for low voltage, low…

A: We are authorized to answer one question and three subparts at a time, since you have not mentioned…

Q: select one quickly Synchronous counter is ........... than asynchronous counter. a) faster, b)…

A: Synchronous counter is counter which clock input for each flip flop given at a time and output of…

Q: Explain the benefits of using analogue and digital electronic devices/systems, using the following…

A: Telephones:Analog: Analog telephone systems transmit voice signals as continuous electrical signals.…

Q: Subject is Communication system. In a public switch telephone network (PSTN),how the analog speech…

A: There are majorly three steps for converting analog signal to digital signal. 1. Sampling of the…

Q: 4.Write 10 Difference between squirrel cage and slip ring with your own words...

A: Construction-wise, induction motors are straightforward and robust. The strength and adaptability of…

Q: . Write the difference between the MOSFET and IGBT?

A: IGBT MOSFET Stands for Insulated Gate Bipolar Transistor Stands for Metal Oxide Semiconductor…

Q: These multiple choice question from DIGITAL COMMUNICATIONS course. just write for me the final…

A:

Q: Consider as a simple telephone network consisting of two end workplaces and one intermediate switch…

A: Each telephone makes 0.5 calls/hour at 5 minutes. Therefore, So a telephone occupies a circuit for…

Q: A new networking technologies and new Internet applications continue to emerge. Some of the most…

A: Given data: Topic Transition Telephone system Switch from ...... to........…

Q: Based on your own words, enumerate and briefly discuss some applications of flipflops

A: A Flip-flop is a circuit that maintains a state until directed by input to change the state. A basic…

Coulomb’s Law

Coulomb's law states that the attraction or repulsion force between two charged things is proportional to the product of their charges and inversely proportional to the square of their distance. It has an effect along the line that connects the two-point charges.