Solution-Does depressing a key increase or decrease its

Does depressing a key increase or decrease its capacitance

Assignment Help Physics

Reference no: EM131127190

Many computer keyboards operate on the principle of capacitance. As shown in the figure below, each key forms a small parallel-plate capacitor whose separation is reduced when the key is depressed.

1985_Transtutors004_17bfa8cd-1497-41d2-9f65-e8cd8d2c89a7.gif

20-16.gif

(a) Does depressing a key increase or decrease its capacitance?

increases or decreases ??

Explain

(b) Suppose the plates for each key have an area of 46.3 mm2 and an initial separation of 0.550 mm. In addition, let the dielectric have a dielectric constant of 3.75. If the circuitry of the computer can detect a change in capacitance of 0.403 pF, what is the minimum distance a key must be depressed to be detected?
______________________ mm

Reference no: EM131127190

Questions Cloud

The steady-state error to be equal : We desire that the phase margin be equal to 30°. For a ramp input r(t) = t, we want the steady-state error to be equal to 0.05. Design a lag compensator to satisfy the requirements. Verify the results.

What frequency describes the data he records : What frequency describes the data he records?

What is the distance to the star in parsecs : Suppose that a dim star is located 2 million AU from the sun. (a) What is the distance to the star in parsecs? (b) What is the parallax angle of the star

What evidence exists on whether entrepreneurs think : What evidence exists on whether entrepreneurs think about and/or develop exit strategies?

Does depressing a key increase or decrease its capacitance : Does depressing a key increase or decrease its capacitance?

Which of the following is not true of pluto largest moon : Which of the following is NOT true of Pluto's largest moon? Which of the following is NOT true about the magnetic fields or Uranus and Neptune

How entitlement can affect the officers in your department : Discuss what "entitlement" means and how it can affect the officers in your department. Evaluate why many police departments ignore "entitlement" and focus more on other unethical behaviors during ethics training.

What it is when the electrons are very far apart : How close would two stationary electrons have to be positioned so that their total mass is 4 times what it is when the electrons are very far apart?

Different ethical decision making approaches to explain : Should products that fail to meet tough FDA standards to be exported to other countries where government standards are lower? Why or why not?

User Account

All Pages

Does depressing a key increase or decrease its capacitance

Reference no: EM131127190

Reference no: EM131127190

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

Find the magnitude of the resulting magnetic field

Find the equivalent resistance

What is the electric field at the location

What is the maximum displacement of the bridge deck

What is the magnitude of the current in the wire

Blackbody

Gravity conveyor

Calculate the dc voltage

Quadrupole moments in the shell model

Determine the tension in each string

Introductory mechanics: dynamics

Evaluate maximum altitude

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT