What is the maximum bandwidth of the amplifier

Assignment Help Physics
Reference no: EM134000

Question1

The overall gain of an STM controller is 10000x (equivalent to40dB, where dB=10log10) at low frequencies. If piezo resonance occurs at 10 kHz, what is utmost 3dB bandwidth of the amplifier (the frequency at which the gain of the amplifier has fallen by 3 dB from its DC gain)? (The gain falls 2x or -­3bB per octave for a plain RC circuit like the integrator in an STM). To do this figure out how several octaves below 10 kHz one should go to get to the full gain, then double frequency to find the ­-3dB point (this is how the bandwidth of amplifiers is generally specified.)

Question2

Operated in constant height mode, the STM forms a current image by recording current as the probe is scanned over a surface. A probe, 2A above a gold surface, consists of a double tip, with a second atom 0.25A higher than lowest atom (which is the one 2A above the surface) gives a ‘ghost’ image displaced from key image. What is relative intensity of this ghost image?

Reference no: EM134000

Previous Q& A

  Evaluate cotts fixed cost

Evaluate Cott's fixed cost? Why is the computation of subunits and subunit managers important? What amount would be Quack's flexible budget variance for the year?

  How to find out the tension in the cable

How to  find out the tension in the cable

  Discuss the different tourism planning approaches

Define the concept of planning and discuss the different tourism planning approaches b) Using appropriate examples to support your arguments, analyze the national and regional tourism planning process

  What is coefficient of kinetic friction

What is coefficient of kinetic friction

  What range is appropriate

What range is appropriate

  Impact the company''s intangible assets

How would his layoff impact the company's intangible assets? How would the BPR event be reflected in the company's financial statemen

  What are the main reasons of government involvement

What are the main reasons of Government involvement in the tourism sector in Mauritius, Support your answer by giving examples

  Purpose statement of net assets

Purpose, in good form, a Statement of Net Assets for Southern State University as of 30 th June, 2012.

  What is first order diffraction angle of light

What is first order diffraction angle of light

  Discuss the weaknesses of the resort life cycle

Critically analyze the different stages of the Resort Life Cycle and discuss how far the model can be used as a tool for policy making. Use appropriate examples to illustrate your arguments Discuss the weaknesses of the Resort Life cycle, using ..

Reviews

Write a Review

 

Similar Q& A

  Determine the eccentricity of the orbit of uranus

Determine the eccentricity of the orbit of Uranus

  How rapidly atom are assembled in this protein synthesis

How rapidly atom are assembled in this protein synthesis

  What would be apparent speed of the spacecraft image

What would be apparent speed of the spacecraft image

  Find out the change in entropy of the system

Find out the change in entropy of the system

  Find an expression for work done by the gas

Find an expression for work done by the gas

  Find out speed of the proton

Find out speed of the proton

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  What is momentum of the block

What is momentum of the block

  Create the magnitude of the net gravitational force on moon

Create the magnitude of the net gravitational force on moon

  What horizontal force acts on the puck after the push

What horizontal force acts on the   puck after the push

  What is wavelength in meters of an electron

What is wavelength in meters of an electron

  What is magnitude of the change in the magnetic field

What is magnitude of the change in the magnetic field

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