Solved physics Paper 5??

[Wanderer]

P.S....Can anyone post the normal ranges of an ammeter and a voltmeter?

 

[FRENZYAMU]

P.S....Can anyone post the normal ranges of an ammeter and a voltmeter?

is quoting ranges necessary ?

but i know an analouge ammeter can have 0 to 4 A

 

[Soldier313]

Wanderer i was thinking we go from 2012 backwards, and people can post diagrams, since these i believe are pretty confusing......
whatever the case, i don't mind it either way, as long as we get moving

 

[Soldier313]

minie23
We are eagerly awaiting your diagrams

 

[Wanderer]

is quoting ranges necessary ?

but i know an analouge ammeter can have 0 to 4 A

I guess they give you a mark for quoting the ranges as part of the 'additional details'....
I guess appropriate ranges for an ammeter could be 0-20mA....0-200mA.....0-10A...depends on the type of experiment
For voltmeter,an appropriate range could be 0-15 V

 

[Wanderer]

minie23
We are eagerly awaiting your diagrams

Il post some diagrams but please do correct me if you think I'm wrong

 

[minie23]

Yeah, I'll have to borrow my sister's camera to take the pic !
I dont know if they will appear good :s

But which one you prefer? Shall I sketch one on PAINT ?

 

[Soldier313]

Il post some diagrams but please do correct me if you think I'm wrong

InshaAllah i'll try my best and inshaAllah others will help too

Yeah, I'll have to borrow my sister's camera to take the pic !
I dont know if they will appear good :s

But which one you prefer? Shall I sketch one on PAINT ?

I don't mind it either way, as long as the diagrams can be understood

 

[minie23]

InshaAllah i'll try my best and inshaAllah others will help too




I don't mind it either way, as long as the diagrams can be understood

Okay
littlecloud11 should be here too

 

[Wanderer]

This diagram is for JUNE10/52 Q1
A friend and I worked it out

 

[Soldier313]

Wanderer that's a brilliant shot! Thanx a million!

 

[Wanderer]

Wanderer that's a brilliant shot! Thanx a million!

My Pleasure

 

[Wanderer]

Please tell me whether this diagram is correct....I dont know how to position the microphone...Please help

N09/51 Q1

 

[Soldier313]

This diagram is for JUNE10/52 Q1
A friend and I worked it outView attachment 27736

Hey for this diagram, does the hall probe have to be positioned differently from the way you've done it?
I think it has to be perpendicular to the magnetic field direction right? Or am i confusing something?

Oh and could you please explain, the points from the ms where it says "determine the axis of the coil" ( in the measurements to be taken section), and also, the parts where the ms states "keep the probe along the axis" (in the additional detail section) please?

Thank you

 

[minie23]

Soldier313
Here you go November 2002 P5 Question 2.

Please add the safety precautions and further design which is found in the marking scheme

 

[minie23]

June 2003 P5 Question 2

Procedure : 1 . The experiment is set up as shown. Radium source is used since it has a very long half life. As the experiment is performed in a short time interval, there will be no change in count-rate due to decreasing activity of the source.
2. Initially, the radium source is removed and background countrate is measured (Cb) at a given p.d
3.The radium source is placed at a fixed distance 'd' from the aluminium sheet and the countrate is measured. Several values of the countrates are measured and the average value is calculated so as to minimise the effect of the random nature of emission. The true countrate, C, is obtained by subtracting the background countrate(Cb) from the measured countrate.
4. The source is removed, the p.d is changed and recorded. The new background countrate is measures and recorded. The source is then placed at the same distance from the G.M tube and the new countrate is measured and recorded.
5. Aluminium sheet is used as an absorber of alpha and beta particles. Thus, the countrates recorded are due to gamma rays only.

Safety precautions :
1. The source is handled using a pair of tongs.
2. Te source is stored in a thick lead lined box when not in use.
3. Care should be taken no to look directly into the source.

 

[Soldier313]

minie23
JazakAllah khair for these!
May Allah bless you!

 

[Silent Hunter]

How to calculate the uncertainties in the Q2 in T^2 ?

Soldier313
minie23
Wanderer

or any one having P5 .... thanks alot

 

[Soldier313]

How to calculate the uncertainties in the Q2 in T^2 ?

Soldier313
minie23
Wanderer

or any one having P5 .... thanks alot

you multiply the uncertainty in T by 2, divide this by the value of T, and then multiply the whole thing by the value of T^2.

eg, if the value of T=0.35, on squaring this you obtain 0.12
The uncertainty in T is say, 0.01.
So, you do,
(2 x 0.01/0.35) x 0.12

 

[Silent Hunter]

you multiply the uncertainty in T by 2, divide this by the value of T, and then multiply the whole thing by the value of T^2.

eg, if the value of T=0.35, on squaring this you obtain 0.12
The uncertainty in T is say, 0.01.
So, you do,
(2 x 0.01/0.35) x 0.12

thank you ... for example if we have like this ? wat should we do ?
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_52.pdf

it Q2 (b) - the table

thanks again