AS PHY PRACTICAL 33

[kelly sheers]

resistivity has to be constant..

sorry resistance for different lengths hence find resistivity, so u just vary ur length and find resistance. thats it. hope i dnt confuse u

 

[MustafaMotani]

and how to proove a given a relationship if proportional or not, after we have calculated the values of "k" ?
for e.g for xperiment 1. k is 0.789 and for experiment 2 k is 0.920 ... what do we do next from here ?

what we were told in the school .... ..

get two values of k ...
then (larger-smaller)/larger x 100

if the value is less than 10% than relationship valid...if greater than 10% then relationship not valid

 

[SexyFag]

http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w12_qp_34.pdf
Q2(d)
How many significant figures do we give? and how do we justify this?



Also guys how do we calculate percentage uncertainity of something? For example time?
Lets say it took 2 seconds for that ball to roll down, how to we calculate the percentage uncertainity?

 

[Meesam]

0.920-0.789/0.920 *100%...! if below 10% proportion and above vice verca...simple...

 

[MustafaMotani]

sorry resistance for different lengths hence find resistivity

hmmm i guessed that ... but we willl have to vary resistance so i was asking that when we connect variable resistance (rhesotat) according to that video it there were three connections, so we shall connect it with upper connection

 

[Tkp]

parallax error in some question is not accepted and with other limitation every question has its own limitation so try to find other as well parallax error and zero error are the most common and the chances are that they are not accepted

yup u r right but check out oct nov 34 they mentioned parallax error and there are other methods.well please check out the other errors rather than finding the mistake

 

[kelly sheers]

what we were told in the school .... ..

get two values of k ...
then (larger-smaller)/larger x 100

if the value is less than 10% than relationship valid...if greater than 10% then relationship not valid

thankyou so much

 

[Meesam]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_34.pdf
Q2(d)
How many significant figures do we give? and how do we justify this?



Also guys how do we calculate percentage uncertainity of something? For example time?
Lets say it took 2 seconds for that ball to roll down, how to we calculate the percentage uncertainity?

dude...the s.f values should b consisitant wid the raw data givn....

 

[MustafaMotani]

thankyou so much

anytime..

 

[faizay warsi]

Okay guys.
Physics 33 Tomorrow will have an electricity experiment. And another simple one.
The electricity one will consist of -Variable Resistor, switch, battery, a sample wire, connecting wires, an ammeter and voltmeter. You`d have to measure the V & I after setting the apparatus after changing placing of the rheostat on the variable and most probably make a graph.
The second one has a clamp stand, a banta ( I dunno whats that called in english ). stopwatch. And you need to slide down a ball from a certain height, note the time.
Note : These are not the confirm experiments. However these instruments are confirmed, and probably the experiments will be somewhat the same as above. Don`t ask about the validity, for sure these will be there tomorrow IN SHA ALLAH.

 

[beeloooo]

^really ? man u are so quick to tell this

 

[faizay warsi]

de

^really ? man u are so quick to tell this

der ai dorust ai

 

[abdul arham]

c

Okay guys.
Physics 33 Tomorrow will have an electricity experiment. And another simple one.
The electricity one will consist of -Variable Resistor, switch, battery, a sample wire, connecting wires, an ammeter and voltmeter. You`d have to measure the V & I after setting the apparatus after changing placing of the rheostat on the variable and most probably make a graph.
The second one has a clamp stand, a banta ( I dunno whats that called in english ). stopwatch. And you need to slide down a ball from a certain height, note the time.
Note : These are not the confirm experiments. However these instruments are confirmed, and probably the experiments will be somewhat the same as above. Don`t ask about the validity, for sure these will be there tomorrow IN SHA ALLAH.

opy cat!!!!!!!!!!!!!!!!!!!!!1

 

[abdul arham]

*copy

 

[kelly sheers]

hmmm i guessed that ... but we willl have to vary resistance so i was asking that when we connect variable resistance (rhesotat) according to that video it there were three connections, so we shall connect it with upper connection

yes!!!

 

[faizay warsi]

c

opy cat!!!!!!!!!!!!!!!!!!!!!1

i accept to copy but for the maximum no. of ma kinds

 

[RWTH]

Okay guys.
Physics 33 Tomorrow will have an electricity experiment. And another simple one.
The electricity one will consist of -Variable Resistor, switch, battery, a sample wire, connecting wires, an ammeter and voltmeter. You`d have to measure the V & I after setting the apparatus after changing placing of the rheostat on the variable and most probably make a graph.
The second one has a clamp stand, a banta ( I dunno whats that called in english ). stopwatch. And you need to slide down a ball from a certain height, note the time.
Note : These are not the confirm experiments. However these instruments are confirmed, and probably the experiments will be somewhat the same as above. Don`t ask about the validity, for sure these will be there tomorrow IN SHA ALLAH.

Ummm dude alteast you can give me the credit for writing that much. You just copy/pasted

 

[Muhammad Nashit]

we are

Exactly what I said earlier.
Here guys, You have the confirmation! If you still think this is a hoax, please kill yourself

really proud of u sir!!

 

[faizay warsi]

Ummm dude alteast you can give me the credit for writing that much. You just copy/pasted

brother tussi great hu....U r awesome

 

[Oceanic]

But if what I have heard is correct there is use of a 10 ohm galvanometer in paper 33