Physics paper 31 , (a death call)

[gooner]

I also got 1.8 for the resistance first, then after finding some big mistake I fixed it and got 1.1. Icant remember exactly how I did it but others in my exam said they got the same, 1.1.

for the ones in parallel, i got 1.2 and the other one was 4.8

 

[gooner]

I also got 1.8 for the resistance first, then after finding some big mistake I fixed it and got 1.1. Icant remember exactly how I did it but others in my exam said they got the same, 1.1.

the resistors in parallel were 2ohms and 3ohms so you do 1/3 + 1/2 which = 5/6 then you flip it giving you 6/5 which is 1.2

 

[Ahmedboombox]

Everyone is giving different answers so we can not take them into count , but we will get 3 marks for the working out inshallah so no worries.

for the ones in parallel, i got 1.2 and the other one was 4.8

 

[Ahmedboombox]

the resistors in parallel were 2ohms and 3ohms so you do 1/3 + 1/2 which = 5/6 then you flip it giving you 6/5 which is 1.2

After you do that you just got the resistance of the two resistors what about resistor R how are you going to get it ?
Look i used the total current and the total voltage(6v) to get the total resistance then i subtracted the total resistance from 1.2ohms and i got my answers , lets not turn this into a debate.

 

[IGCSE O/L student]

After you do that you just got the resistance of the two resistors what about resistor R how are you going to get it ?
Look i used the total current and the total voltage(6v) to get the total resistance then i subtracted the total resistance from 1.2ohms and i got my answers , lets not turn this into a debate.

so u get 1.8 ohms. dats rite

 

[svenas]

left

oh thanks god.... but plz tell me once again losing about 20 marks will give me chance of A*??

 

[IGCSE O/L student]

It was the other way around ...LDR was down and the resistor was up.


In the last one ......LDR should be replaced by resistor and the resistor should be replaced by a thermistor.

RSDEV
i started a conversation wid u. cum will discuss dere.

 

[IGCSE O/L student]

oh thanks god.... but plz tell me once again losing about 20 marks will give me chance of A*??

dere is a chance coz as i said da thresholds will b low.

 

[gooner]

Everyone is giving different answers so we can not take them into count , but we will get 3 marks for the working out inshallah so no worries.

yeahh inshallah!

 

[gooner]

After you do that you just got the resistance of the two resistors what about resistor R how are you going to get it ?
Look i used the total current and the total voltage(6v) to get the total resistance then i subtracted the total resistance from 1.2ohms and i got my answers , lets not turn this into a debate.

yeah thats right! total was 6 so i did 6-1.2 which gave me 4.8 for resistor R

 

[natsume hyuga]

hey guys for the drawing of the diffracted waves, i drew it in pencil, will they grade it?

 

[IGCSE O/L student]

hey guys for the drawing of the diffracted waves, i drew it in pencil, will they grade it?

u r supposed 2 draw in pencil

 

[natsume hyuga]

tha

u r supposed 2 draw in pencil

thats a relief! but are u really sure? Im getting really paranoid after the physics exams.

 

[IGCSE O/L student]

tha
thats a relief! but are u really sure? Im getting really paranoid after the physics exams.

drawings r supposed 2 b in pencil. n i'm 500% sure abt dat

 

[Muhammad Nihal]

yepp i also did towards Right

 

[IGCSE O/L student]

wat abt da direction of force on da beta particles. dere ws a question sumthin lyk dat, ryt?

 

[Muhammad Nihal]

guyz what was the max speed? :\
was it 7. something???
please discuss the paper !!

I got the same answer but not sure its correct

 

[Muhammad Nihal]

Downwards

 

[IGCSE O/L student]

I got the same answer but not sure its correct

myn ws 9.333 m/s

 

[IGCSE O/L student]

Downwards

i put out of da page