Find the effective area required to build such a capacitor

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Homework Help Overview

The discussion revolves around the construction of a capacitor with a specified capacitance of 1 Farad using Strontium Titanate as the dielectric. Participants are tasked with determining the minimum gap for a maximum voltage of 5 volts and the effective area required to fit this into a compact volume.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants explore the relationship between capacitance, dielectric strength, and physical dimensions. There is a suggestion to start from the concept of dielectric strength to find the minimum gap. Some express uncertainty about the problem-solving approach, while others question the relevance of the equations provided.

Discussion Status

The discussion is ongoing, with participants raising questions about the initial assumptions and equations. Some guidance has been offered regarding the need to consider the correct capacitance equation for a dielectric, but there is no explicit consensus on the next steps.

Contextual Notes

Participants are working under constraints related to the physical dimensions of the capacitor, aiming to fit the required area into a volume of only a few centimeters. There is also a mention of potential missing information regarding the dielectric properties.

euphrates
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Homework Statement



One can buy 1 Farad capacitors which are only a few centimeters long. Speculate
on how you can build such a capacitor. Assuming that you are using Strontium
Titanate as the dielectric find the minimum gap for a maximum voltage of 5 volts.
Find the effective area required to build such a capacitor. How can you put this area
into a volume that is only a few centimeters

Homework Equations


C=Q/V
C=EoA/d

The Attempt at a Solution


to find the minimum gap, i think we can start from dielectric strength??
 
Last edited:
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The Attempt at a Solution


Aren't you forgetting something??
 
i don't have any idea about how to solve that problem so a little help
 
You need to start by looking at the equation for the capacitance of a capacitor with a dielectric. The equation you listed is for capacitance with no dielectric.
 

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