Labprep - Q8

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

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

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

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

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. )

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)

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

anyone got #6, plz share

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

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

anyone got #6

for question #6 its

E = deltaV/deltax

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

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

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)

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