What are the unity-gain and beta-cutoff frequencies

Assignment Help Electrical Engineering
Reference no: EM131261748

(a) What is the forward transit time τF for an npn transistor with a base width WB = 0.5 m and a base doping of 1018/cm3?

(b) Repeat the calculation for a pnp transistor. A transistor has a dc current gain of 200 and a current gain of 10 at 75 MHz. What are the unity-gain and beta-cutoff frequencies of the transistor?

Reference no: EM131261748

Questions Cloud

Write a user defined function : Write a user-defined function with function call C = temp_conv(F) where F is temperature in Fahrenheit, and C is the corresponding temperature in Celsius.
Conduct a research about credit and liquidity : Conduct a research about credit and liquidity. Conduct a research about the banks' service network, including its branches, atms, telephone centres, internet banking and online banking.
Find the necessary to hold the gun in position : A machine gun fire 10 bullets per second into a target.each bullet weighs 20 gm and had a speed of 1500 meter per second.  -Find the necessary to hold the gun in position.
Do heroines of these movies rebel against the expectations : Do the heroines of these movies rebel against the expectations that society imposed on women? Do the filmmakers regard these women as heroes or as wicked and destructive? Look at the following documents found on Blackboard: Polgar (Oct. 7), and ..
What are the unity-gain and beta-cutoff frequencies : Repeat the calculation for a pnp transistor. A transistor has a dc current gain of 200 and a current gain of 10 at 75 MHz. What are the unity-gain and beta-cutoff frequencies of the transistor?
How are coke and pepsi using their web sites : How are Coke and Pepsi using their Web sites, www.coca-cola.com and www.pepsi.com, to promote their newest product offerings?
What is the collector-emitter voltage for the transistor : What is the collector-emitter voltage for the transistor in Fig. P5.58(a) if IS = 5 × 10-16 A, αF = 0.99, and αR = 0.5?
Write a business mission statement for shur snak : Write a business mission statement for Shur Snak. What elements should you include? -  Evaluate the mission statement you wrote against some of those you can find online.
What is the average static power dissipation of this gate : Derive an expression for the saturation voltage VECSAT of the pnp transistor in a manner similar to that used to derive.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Find the frequencies of the tones that are one, two or three

Starting with a tone having a frequency of 5440 cycles per second, find the frequencies of the tones that are one, two, three, and four octaves lower.

  Estimate the number of photovoltaic cells on the building

A Building produce 400 V at 200 A. using individual photovoltaic cells that each produce 0.5 V at 1 A . Include a schematic diagram of your design idea. How many photovoltaic cells are needed for your design.

  It has been said there is no bad data, just bad management

To what extent should end users be involved in the selection of a database management system and database design?

  Does a hollywood camera make on-screen characters

Does a Hollywood camera make on-screen characters appear more alluring and lovely than they actually look? I was viewing a motion picture the on-screen character was beautiful in the film then when i saw her genuine picture she didn't calm look what ..

  Determine what is the back emf of an ac series circuit

If I have an AC series circuit with a voltage source of 3 Vrms, a frequency of 5 kHz, a 100 mH coil, and a 1 kohm resistor, how do I determine what the back emf is

  What is the slip of the motor at this time

The power crossing the air gap of a 60 Hz, four-pole induction motor is 25 kW, and the power converted from electrical to mechanical form in the motor is 23.2 kW.

  Determine difference equation by pole-zero placement method

A first order highpass filter is required to satisfy the following specifaction fs=10000Hz fc=4000Hz Find the transfer function and difference equation by the pole-zero placement method.

  Review the characteristics of each material

Consult a semiconductor electronics text and note the extensive use of germanium and silicon semiconductor materials. - Review the characteristics of each material.

  Estimate the worst-case varation in film thickness

A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the center and edges

  Calculate field on one side of disk as function of distance

Consider a thin ring of radius a with uniform charge density and total charge Q. The ring is cut in half across the diameter and the two halves superimposed to double the effective charge density.

  How much of the 235u fuel is consumed

Reactors for naval vessels are designed to have very long lifetimes without the need to refuel. Discuss possible techniques that can be used to maintain criticality over the core lifetime as 235U is consumed.

  Explain how much power does the third element absorb

a circuit consists of three elements in series. a source delivers 90 watts and one of the passive elements absorbs 20 watts. how much power does the third element absorb.

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