Why are waveguides not used at low frequencies, Electrical Engineering

Assignment Help:

Q. Comment brie?y on the following:

(a) Why are waveguides not used at low frequencies?

(b) Why are open-wire lines not generally used as guiding structures at very high frequencies?

(c) What is the velocity of wave propagation in a Te?on (εr = 2.1) coaxial transmission line?


Related Discussions:- Why are waveguides not used at low frequencies

Bode plot phase ad gain margin, Using Bode plot calculate (a) Phase margin ...

Using Bode plot calculate (a) Phase margin (b) Gain margin (c) Stability of closed loop system. The open transfer function of the system is t=30/(s+2)/(s+3)Using Bode plot calcula

Show equivalent circuit of a synchronous machine, Equivalent Circuit of a S...

Equivalent Circuit of a Synchronous Machine A review of the material about elementary synchronous machines is very helpful at this stage to recall the principles of operation f

Power in balanced three-phase circuits, Power in Balanced Three-Phase Circu...

Power in Balanced Three-Phase Circuits The total power delivered by a three-phase source, or consumed by a three-phase load, is found simply by adding the power in each of the

What is current gain in rc coupled amplifier, Q. What is current gain  in R...

Q. What is current gain  in RC coupled amplifier? Current gain is the ratio of the output current to the input current. we represent it as A i . A i =I o /I s it can

Show the properties of a good heat sink, Properties of a good heat sink ...

Properties of a good heat sink For maximum efficiency, a heat sink should be 1)Be in good thermal contact with the transistor case 2)Have the largest surface area 3)Be

Relative and absolute motion measuring device, a) With the help of a neat a...

a) With the help of a neat and clean sketch illustrate the difference between relative and absolute motion measuring device. b) Discuss electromechanical methods for calculating

Logically and the contents of memory, Logically AND the contents of memory ...

Logically AND the contents of memory Contents of memory  location,  whose address is specified by HL register pair are logically AND with the  contents  of the accumulator. The

What is meant by wait state, What is meant by Wait State? This state is...

What is meant by Wait State? This state is used by slow peripheral devices. The peripheral devices can transmitted the data to or from the microprocessor by using READY input l

Open-circuit and load characteristics of generator, Q. Open-circuit and loa...

Q. Open-circuit and load characteristics of generator? The open-circuit and load characteristics of a separately excited dc generator, along with its schematic diagram of conne

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd