Chapter 24: Problem 42
A parallel-plate capacitor has capacitance
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Chapter 24: Problem 42
A parallel-plate capacitor has capacitance
These are the key concepts you need to understand to accurately answer the question.
All the tools & learning materials you need for study success - in one app.
Get started for freeIn one type of computer keyboard, each key holds a small metal plate that
serves as one plate of a parallel-plate, airfilled capacitor. When the key is
depressed, the plate separation decreases and the capacitance increases.
Electronic circuitry detects the change in capacitance and thus detects that
the key has been pressed. In one particular keyboard, the area of each metal
plate is 42.0 mm
The dielectric to be used in a parallel-plate capacitor has a dielectric
constant of 3.60 and a dielectric strength of 1.60
When a 360-nF air capacitor (11 nF = 10
A 20.0-
A parallel-plate vacuum capacitor has 8.38 J of energy stored in it. The separation between the plates is 2.30 mm. If the separation is decreased to 1.15 mm, what is the energy stored (a) if the capacitor is disconnected from the potential source so the charge on the plates remains constant, and (b) if the capacitor remains connected to the potential source so the potential difference between the plates remains constant?
What do you think about this solution?
We value your feedback to improve our textbook solutions.