physics p5 discussion

[WellWIshER]

but thn y in lg r we calculaate 2 dp????

like u didv 3.00

 

[samy]

but thn y in lg r we calculaate 2 dp????

like u didv 3.00

man dat is not a problem..u can also take 2.996..

i took 3.00 because it is easy for me to locate in the graph and for the 2.996 i will have to make more calculations to c where it lies in the graph...
coz in this graph one little box is = 0.0025 ...if i will take such decimal places em gona make it tough for myself.!!1

 

[workinghard]

@wellwisher
will u chill out
i think ur overdoing it
relax u no wat 2 do ... breathe... u r getting hysterical...
n sir gurls r da ones who r helping u u cant pufff dem...

 

[srukhan]

Ok GUYS June 2010 uncertainity in Xc, Jaldiiiii?

 

[workinghard]

wat? u r tlkin bout error finding 4 bars????

 

[WellWIshER]

@wellwisher
will u chill out
i think ur overdoing it
relax u no wat 2 do ... breathe... u r getting hysterical...
n sir gurls r da ones who r helping u u cant pufff dem...

who is sir???????

and i was joking dont get hysterical!!! :lol:

 

[workinghard]

me is not getting hysterical its u who is asking n asking bout same thing,...
n dont tell me u r a madam cux i cald u a sir

 

[srukhan]

wat? u r tlkin bout error finding 4 bars????

uncertainity in the table for Xc yaar
this is what mark scheme had but i dont know how to get these
± 20 (allow ± 17 or 18 or
19), decreasing to ± 10
(allow ± 7)

 

[workinghard]

oh k
u calc da frac error in Vo n Io n add da two errors up n multiply dem with ur value of Xc
check it out n post ur response soon cux lite's gonna go n i wont b able 2 c it!!!

 

[srukhan]

oh k
u calc da frac error in Vo n Io n add da two errors up n multiply dem with ur value of Xc
check it out n post ur response soon cux lite's gonna go n i wont b able 2 c it!!!

Oh apologies I got immersed in the past papers.
Vo= (5.2-4.8 )/2= 0.2
Io= (15.2-14.8 )/2= 0.2
(0.2+0.2)x 333=133.2 but mark scheme says +/-20 for the first column

 

[WellWIshER]

oh k
u calc da frac error in Vo n Io n add da two errors up n multiply dem with ur value of Xc
check it out n post ur response soon cux lite's gonna go n i wont b able 2 c it!!!

Oh apologies I got immersed in the past papers.
Vo= (5.2-4.8 )/2= 0.2
Io= (15.2-14.8 )/2= 0.2
(0.2+0.2)x 333=133.2 but mark scheme says +/-20 for the first column

wt da flip

i just did dis now its like 18 and goes up to 7.4

 

[fluffycloud]

While finding Lg's and errors,do you need to divide by two????

 

[msk]

While finding Lg's and errors,do you need to divide by two????

no see let the value be 20(+-)0.2 ....so u take log20.2 - log20....this is your eror

 

[diwash]

and what about Mj 10 P51 ...error in Xc...

 

[samsung156]

While finding Lg's and errors,do you need to divide by two????

no see let the value be 20(+-)0.2 ....so u take log20.2 - log20....this is your eror

No.

The error will be ( log 20.2 - log 19.8 ) / 2

If you don't divide by two , none of the answers match the markscheme.

 

[samsung156]

Ok GUYS June 2010 uncertainity in Xc, Jaldiiiii?

For the First Value , that is
V = 5.00 +/- .2
I = ( 15 +/- .2 ) X 10 ^ -3

The method is in the image

In this way , the answer is 17.78 which is equal to +/- 18

 

[samsung156]

Sorry , that will be

5 divided by 15 X 10^ -3 . The rest is same

 

[MukeshG93]

You should be able to use log(x+dx) - log(x) for the absolute error in the logarithm. Trust me, CIE will take that.