physics p5 discussion

[ivorydale]

@workinghard can you show me how to calculate error values without lg/ln

 

[workinghard]

Sure …
In sq values as in T2 calc da error:
U’ve eg value 1.03 +_ .02 s u take da sq of 1.05 n subtract da sq of 1.03 4m it .. this ll b ur error… here… 0.0416
Hope u get it
In frac errors as in j10 51 u take frac error of Vo n Io and add dem up n multiply it with ur value as 4 22oHz in dat ppr frac error was 4/75 multiplying it with our value ie 333.33 our uncertainity was 17.78
Now take a look at ppr n tell me whether u can solve it!!!

 

[ivorydale]

thnx aloot!!! it works!

 

[yasser37]

Hi guys
Paper 5
June 07
Question 2
The error bars are horizontal yet too small to be drawn
can someone attach a drawing? Thanks

 

[fluffycloud]

Heyyy!
Paper 5 Summer 08 Q2 the last partt.
I don't get how to do?

 

[srukhan]

Hi guys
Paper 5
June 07
Question 2
The error bars are horizontal yet too small to be drawn
can someone attach a drawing? Thanks

This is how I've done it.. You can take a look, although Im not dead sure of how precise it is

Could someone upload a piciture for the arrangement of the apparatus for Nov/2007?

 

[beacon_of_light]

^^^ the error bars were to be drawn horizontally not vertically, since the errors are in lengths not resistance...

 

[beacon_of_light]

Heyyy!
Paper 5 Summer 08 Q2 the last partt.
I don't get how to do?

you have the formula R=Ro e^-ρ η x ...& R= 10% or 0.1 ... solve it and you'll get the ans

 

[beacon_of_light]

Hi guys
Paper 5
June 07
Question 2
The error bars are horizontal yet too small to be drawn
can someone attach a drawing? Thanks

that's an estimate... for eg if the error bar is +-12 make a point in b/w 11th and 12th block ...

 

[srukhan]

^^^ the error bars were to be drawn horizontally not vertically, since the errors are in lengths not resistance...

Cool yeahh, I didn't notice that. I shall try and make a new one then. Whew!

 

[fluffycloud]

Hey do we need to know the working of CRO in detail.
Could some one explain working of Oscilloscope as a voltmeter,and in sound experiemtnS?
thanksss

 

[yasser37]

november 08
question 2
part e

 

[princesszahra]

Hey do we need to know the working of CRO in detail.
Could some one explain working of Oscilloscope as a voltmeter,and in sound experiemtnS?
thanksss

CRO in detail is not required at ur level

 

[srukhan]

Say what?

 

[shahnawaz02]

guys ne one got ne clue about wht might be coming for p5?????? :evil:

 

[YougesFCB]

how to label those two lines? cant we use two types like pencil for best fit n pen for the worst one?

 

[srukhan]

@YoungesFCB
I really don’t think it’s a wise decision to use a pen on the graph since it’s clearly mentioned to use a soft pencil for graphs and diagrams

 

[yasser37]

srukhan what was you error in the table?
i got 4.8 which is impossible to show
how did u calculate error?

 

[srukhan]

how about this: (6.2^2)-(5.8^2)
or this: d(max)^2-d(min)^2/2
It's the same thing whatever's easier to remember, it's upto you

 

[yasser37]

can I know the rule u used?
also I got 4.8
the scale on the graph is 5 per the small square so the error bar is waaaaaaaaaaaaaaaaaay too small
am I wrong somewhere?