Labprep - Q8

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Labprep - Q8 Empty Labprep - Q8

Post  pinkdino on Thu Jan 29, 2009 3:31 pm

need help with question 8, not sure where to even begin....i can help with the rest of the lab

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Labprep - Q8 Empty Q8

Post  yep yep on Thu Jan 29, 2009 8:15 pm

since E= deltaV/deltax ...its in errors and uncertainty.

DeltaE=
sqrt((DdeltaV/deltaV)^2 + (Ddeltax/deltax)^2)*E

yep yep
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Labprep - Q8 Empty question 4

Post  sjames on Thu Jan 29, 2009 8:22 pm

Question 4: (3 points)

Can someone help with question 4 below?

Lab 1 Electric Field and Potential - Voltages:
The sketch below shows the elements for the measurements of the equipotential lines in the "parallel plates" arrangement.. Select all correct statements.



The voltage between points 1 and 2 is "zero" (not more than a couple of mV)
The voltage difference between positions 1 and 3 is equal to the voltage difference between positions 1 and 4
The voltage difference between positions 1 and 2 is equal to the voltage difference between positions 3 and 4
The voltage between points 1 and 3 is less than 1/10 of the voltage between the two plates
With the dry cell -(+) terminal connected to the low (high) voltage plate the potential increases as you move from position 3 to position 1
The voltage between points 1 and 3 is less than the voltage between points 1 and 2

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Labprep - Q8 Empty question 4 and 7

Post  sck105 on Thu Jan 29, 2009 8:31 pm

I cant figure out 4 or 7 can someone help?

Question 7: (7 points)
Lab 1 Electric Field and Potential - Error of Voltage Difference :

Give the expression for the absolute error of the voltage difference in terms of the absolute errors of the two voltages. (Use equation (6) of "Error and Uncertainty").
(Use deltaV_1 and deltaV_2 for. )

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Labprep - Q8 Empty Re: Labprep - Q8

Post  Kathleen on Thu Jan 29, 2009 11:43 pm

I already finished my quiz and forgot what I put and now that we don't log into mapleta i cant go back and check my answers but for #4 I believe there were three different answers... the last one was definitely right, and then i think the first about it being zero. and then..maybe the second to last one? I'm not sure but just go with the first two i said and then maybe guess and check.

And for #7, again I'm not certain because I can't look it up on mapleTA but i think it was something like this:

sqrt((delta_V1)^2+(delta_V2)^2)

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Post  sue on Fri Jan 30, 2009 12:37 am

wat r the formulas for #6 and #7
I am really having a hard time with both of them Neutral

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Labprep - Q8 Empty #6

Post  sarah on Fri Jan 30, 2009 12:39 am

anyone got #6, plz share Sad

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Labprep - Q8 Empty Question#6

Post  dreiser3 on Sun Feb 01, 2009 1:56 pm

sqrt((deltaV_1)^2+(deltaV_2)^2)

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Labprep - Q8 Empty Question 6

Post  guestttt on Sun Feb 01, 2009 3:14 pm

sqrt((deltaV_1)^2+(deltaV_2)^2) is form for #7
Anyone got 6????

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Labprep - Q8 Empty 6

Post  6 on Sun Feb 01, 2009 6:12 pm

anyone got #6

6
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Labprep - Q8 Empty quest 6

Post  guest_01 on Sun Feb 01, 2009 6:23 pm

for question #6 its

E = deltaV/deltax

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Labprep - Q8 Empty question4?

Post  guestt11 on Sun Feb 01, 2009 9:30 pm

has anyone found the correct combo for number 4? i cant manage to get it right

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Labprep - Q8 Empty to see your maple TA details

Post  guess on Sun Feb 01, 2009 10:40 pm

you can find you details look under tools and click maple TA u can find it there

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Labprep - Q8 Empty MapleTA not working!?

Post  Shrubbs on Sun Feb 01, 2009 11:17 pm

Is your MapleTA all screwy when you get to the middle (around question 4/5/6) and then stops working?

It wasn't like this a few hours ago

(Sunday 2/1 ~ 9:15 PM)

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Labprep - Q8 Empty 4

Post  1 on Mon Feb 02, 2009 2:57 am

thanks kathleen for the hint
answer to 4 is
The voltage between points 1 and 2 is "zero" (not more than a couple of mV)
The voltage difference between positions 1 and 3 is equal to the voltage difference between positions 1 and 4
The voltage difference between positions 1 and 2 is equal to the voltage difference between positions 3 and 4
those 3 only

1
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Labprep - Q8 Empty Re: Labprep - Q8

Post  quest44 on Mon Feb 02, 2009 3:22 am

mine keeps freezing at question 5 i dont know what to do

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Labprep - Q8 Empty MapleTA problems

Post  mdawber on Mon Feb 02, 2009 2:58 pm

We are having lots of problems with MapleTA, it seems to have trouble when there are about 200 open assignments on the system..this is clearly not good enough and we need to find a solution which we are trying to do now.

But you know it might be a good idea for you all to look at and post on the official blog (phy122help at blogspot) instead of discussing server issues here...nobody here is going to go fix the server for you!

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