Physics paper 31 , (a death call)

[bluefa1con]

LDR WAS AT A !!!!!! 1st gap sureeee...in light R dec. V inc. V around transistor increase positive at the battery was towards A

no ldr was B and it is 100% correct
have a look at potential divider and you ll understand

 

[Abu mota]

you are 100% wrong
someone posted an actual experiment on this thread that proves expansion is the answer

you guys are missing the point
water has a high heat capacity
plus glass is an insulator
so the heat supplied is not enough to raise water's temperature at 1st so the glass expands
evaporation wont happen in that think tube
why? because the tube has thin area
thin area = very slow evaporation = no obvious change

Lol just like as the one above u said the tube is thin so any small change can be noticed and it has nothing to do with temperature because temperature just affects rate and evaporation can happen at any temperature. Ty

 

[aliqamar1995]

Hey guys any help in chemistry what type of Questions came ? :/ which topics to study ?

 

[Abu mota]

Hey guys any help in chemistry what type of Questions came ? :/ which topics to study ?

see the syllabus and u need all of the topics for paper 3 but organic chemistry is the most important then moles then rates of reaction and the rest are a little less important

 

[Omar Hosny]

no ldr was B and it is 100% correct
have a look at potential divider and you ll understand

potential divider ?!! lool I swear it's at A AT DARK HIGH R HIGH V SO HIGH V AT TERMINAL CONNECTING TO TRANSISTOR

 

[Jisu]

thnx.
this proves my brain is stupid!
my answer is wrong!

gosh girl!
its just one mark
just look forward n move on
be happy, u didnt make silly mistakes like me

 

[bluefa1con]

Lol just like as the one above u said the tube is thin so any small change can be noticed and it has nothing to do with temperature because temperature just affects rate and evaporation can happen at any temperature. Ty

you now are just talking bullshit
just admit it you got it wrong
it wont change the fact

 

[bluefa1con]

potential divider ?!! lool I swear it's at A AT DARK HIGH R HIGH V SO HIGH V AT TERMINAL CONNECTING TO TRANSISTOR

lol go study transistors again

 

[kareem1997]

where was da position of p and q first???? cz i 4gt da question

 

[Omar Hosny]

bluefa1con
look bro, he said activating the lamp at night..and the positive terminal of the battery was towards gap 1..So LDR at A because at night it will has high R and so high V around its terminals and so around the terminals connecting transistor..try not to fight!

 

[IGCSE O/L student]

gosh girl!
its just one mark
just look forward n move on
be happy, u didnt make silly mistakes like me

it is?
ok, thanks Jisu bro.

 

[bluefa1con]

bluefa1con
look bro, he said activating the lamp at night..and the positive terminal of the battery was towards gap 1..So LDR at A because at night it will has high R and so high V around its terminals and so around the terminals connecting transistor..try not to fight!

dude i have the same question in my physics book to activate the lamp at night
the fixed resistor is near positive terminal and the LDR is near negative terminal
i dont need to argue on this point because i already have the solved question in front of me

 

[Omar Hosny]

dude i have the same question in my physics book to activate the lamp at night
the fixed resistor is near positive terminal and the LDR is near negative terminal
i dont need to argue on this point because i already have the solved question in front of me

dude i have the same question in my physics book to activate the lamp at night
the fixed resistor is near positive terminal and the LDR is near negative terminal
i dont need to argue on this point because i already have the solved question in front of me

this is because the resistor had very huge resistance (I also saw it in the book)

 

[IGCSE O/L student]

bluefa1con
look bro, he said activating the lamp at night..and the positive terminal of the battery was towards gap 1..So LDR at A because at night it will has high R and so high V around its terminals and so around the terminals connecting transistor..try not to fight!

bluefa1con is right. the LDR should be in gap B

 

[Abu mota]

you now are just talking bullshit
just admit it you got it wrong
it wont change the fact

That's your reply???? Lol sorry but if u dont understand what I just said you are either stupid or u don't understand english, I will try to make it simpler, when you have a thin tube any small change can be noticed because the liquid will rise high for every small change, and i didn't really understand what u said about the temperature will be low, as how will it be low if he is heating the liquid :/ and the difference in surface area is what made rise bigger than fall. That's how I did it if u don't agree go **** yourself. Good bye

 

[bluefa1con]

That's your reply???? Lol sorry but if u dont understand what I just said you are either stupid or u don't understand english, I will try to make it simpler, when you have a thin tube any small change can be noticed because the liquid will rise high for every small change, and i didn't really understand what u said about the temperature will be low, as how will it be low if he is heating the liquid :/ and the difference in surface area is what made rise bigger than fall. That's how I did it if u don't agree go **** yourself. Good bye

y3w so k3wl
seriously its not worth my time
good day