physics p5 discussion

[mehlub92]

terrorist attacks in karachi.. can tomorows exam be cancelled??? any possibility???

 

[samy]

mine is 0.0415

AND ERROR!

i did this paper just now n i am feeling too lazy to find error lol..

but it would b like

error in x / x = error in n / n

sorrryyy vnt found it

 

[WellWIshER]

dude in june 09 do we include 10x ^ 5 ?????????

 

[samy]

CAN SOMEONE please tell me gradient in jUNE 09 and

their value of part b lg I i got .81 +-.007!!!!??? IS DIS CORRECT??

i havent drawn the graph yet but i dun think ur log i is correctfor b part my first value of log I is 0.41 + - 0.02....

r u talking about first value in graph??

 

[samy]

dude in june 09 do we include 10x ^ 5 ?????????

yes for finding gradient u definitely have to include..!!

 

[WellWIshER]

i swear i didnt and got xact MS ANS!!!!

 

[WellWIshER]

CAN SOMEONE please tell me gradient in jUNE 09 and

their value of part b lg I i got .81 +-.007!!!!??? IS DIS CORRECT??

i havent drawn the graph yet but i dun think ur log i is correctfor b part my first value of log I is 0.41 + - 0.02....

r u talking about first value in graph??

no da last yaar DA MS says ur log ans should be 2 or 3 dp

i preffer 2 dp but wt if my error is 3 dp should i convert to 2 dp??????

like da one above!!

now be a good boy and tell me ur ans of B in oct p8 q2 e!!!!

with error :Bravo:

 

[samy]

lol u dunt ve to swear...dat is because the powers may have cancelled eachother... try oct nov ummm 53 variant i guess...u will realize that u have to use them otherwise the ans is not correct so y take risk

 

[WellWIshER]

ans my question above bro

and please tell me ur last lg value!!!!!!!! in b

and ur 1st log value in oct p9!!!

 

[samy]

CAN SOMEONE please tell me gradient in jUNE 09 and

their value of part b lg I i got .81 +-.007!!!!??? IS DIS CORRECT??

i havent drawn the graph yet but i dun think ur log i is correctfor b part my first value of log I is 0.41 + - 0.02....

r u talking about first value in graph??

no da last yaar DA MS says ur log ans should be 2 or 3 dp

i preffer 2 dp but wt if my error is 3 dp should i convert to 2 dp??????

like da one above!!

now be a good boy and tell me ur ans of B in oct p8 q2 e!!!!

with error :Bravo:

acha pehlay to i cant be a gud boy coz em a girl
second thing is that i have not drawn graphs of three papers n u r askin about thingx from those lol....
but i know how to find this error....i wax just busy with maths so i am too lazy to draw graphs now...

anyway for your s.f confusion. use the d.p or s.f in the table by referring to the axis of the graph. c how many they have used that would be helpful...
and for uncertainities beter if u use 2 d.p or 3 s.f ...

 

[WellWIshER]

brrrrrrrrrrrrrrrrrrrrr.....

tht was nt very helpful *sigh*... gurlzzzzzz......pufffffff


thanx anyways

 

[samy]

ans my question above bro

and please tell me ur last lg value!!!!!!!! in b

and ur 1st log value in oct p9!!!

the first is 3.00 +- 0.004

last is 2.79 + - 0.007

 

[samy]

brrrrrrrrrrrrrrrrrrrrr.....

tht was nt very helpful *sigh*... gurlzzzzzz......pufffffff


thanx anyways

hahahahhahahah em really really sorrry man
will be more helpful next tym
if u say so i can make graphs and tell u the ans now but really wud ask me to do dat??? lol...just kidding


BEST OF LUCK....

 

[awesome94]

yar how to use light gates? and range of ohmmeter, voltmeter and ameter any one plz help

idk if anyone else replied to this,.. anyways, u should just say, Use a wide range ohmmeter/ammeter/whatever
and oh really imp
wen ur drawing circuits keep in mind::
OHMMETER DOES NOT REQUIRE POWER SUPPLY..
just connect the ohmeter to the thing tht u wanna msr resistance of.
BEST OF LUCK FOR THE EXAM TOMOROW EVERYONE!!
HOPE ITS SUPER EASY! AND WE ALL GET As!!!
INSHAALLAH!

 

[WellWIshER]

omg dis IS BLOWING UO MY MIND!!

guys in oct 09 51!!! y is da value of lg T/K NOT TAKEN TO 2 DP!!!!!!

WHY 3 OR 4????

 

[WellWIshER]

ans my question above bro

and please tell me ur last lg value!!!!!!!! in b

and ur 1st log value in oct p9!!!

the first is 3.00 +- 0.004

last is 2.79 + - 0.007

SHOULDNT WE RITE it as 2.79+- .01

 

[samy]

omg dis IS BLOWING UO MY MIND!!

guys in oct 09 51!!! y is da value of lg T/K NOT TAKEN TO 2 DP!!!!!!

WHY 3 OR 4????

yaar coz c the graph u can easily plot points of 3 to 4 sig fig.

v round of our numbers so dat v can easily plot the numbers in the axis ALREADY given to us...so luk at it u can easily plot these...besides rounding off to 2 d.p will decrease the accuracy of ur graph!!!

 

[samy]

ans my question above bro

and please tell me ur last lg value!!!!!!!! in b

and ur 1st log value in oct p9!!!

the first is 3.00 +- 0.004

last is 2.79 + - 0.007

SHOULDNT WE RITE it as 2.79+- .01

graph main jo bhi absolute errors nikaltay hain na try to write them in atleast 3 d.p for accuracy. in graph it doesnot matter k u have used how many d.p.

P.S just for the sake of accuracy do not try to round off numbers more.!!! this will always help u in gettin exact answers.!!!

 

[WellWIshER]

cheeeers n beeers

 

[samy]

cheeeers n beeers

satisfied with the d.p ka masla now?

in paper before calculating table values just take a luk at the graph u will get the hint of d.p