What is the correct answer to the electric strength problem?

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Homework Help Overview

The discussion revolves around a problem related to electric strength and capacitance in a parallel-plate capacitor setup, specifically focusing on calculating the maximum charge that can be placed on the capacitor given certain parameters.

Discussion Character

  • Exploratory, Problem interpretation, Assumption checking

Approaches and Questions Raised

  • Participants discuss the manipulation of the formula for electric strength and capacitance, with one participant attempting to calculate charge using E = q/(ε*A) and another suggesting a different formula involving the dielectric constant. Questions arise regarding the correctness of the calculations and the interpretation of the homework requirements.

Discussion Status

The discussion is ongoing, with some participants exploring different formulas and approaches to the problem. There is a lack of consensus on the correct method to use, and one participant has indicated they found a solution but did not share it, leaving others seeking clarification.

Contextual Notes

Participants are working under the constraints of a homework assignment that specifies the answer format and units, which may influence their calculations and interpretations.

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https://hw.utexas.edu/tmp/Muddam1/1077653690Xuj.pdf

I did this: I manipulated [tex]E = \frac{q}{\epsilon*A}[/tex] to get [tex]q = E*\epsilon*A[/tex] (E= electric strength), so 1.6e7*8.85e-12*.0246*.0501 = 1.74516e-7 but because the HW asks the answer to the 1e-6, I divided 1.74516e-7/1e-6= .174516 but it's wrong does anyone know why?
 
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Whoa...

Ok this is the problem

009 (part 1 of 2) 10 points
A parallel-plate capacitor of dimensions
2:46 cm £ 5:01 cm is separated by a 0:61 mm
thickness of paper.
Find the capacitance of this device. The
dielectric constant · for paper is 3.7. Answer
in units of pF.

I got this right.

010 (part 2 of 2) 10 points
What is the maximum charge that can be
placed on the capacitor? The electric strength
of paper is 1:6 £ 107 V=m. Answer in units of 1e-6c.
this is the one I need help on
 
...

Never mind, I got it.
 
So what's the answer?
 
I used a different formula to get the answer: [tex]q = E*k\epsilon*A[/tex]
 

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