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  1. Scafalon40

    Potentiometer concept

    I don't have that one:(
  2. Scafalon40

    Potentiometer concept

    Does anybody know about this? Please guys, anyone?
  3. Scafalon40

    Potentiometer concept

    And what about the e.m.f part?...
  4. Scafalon40

    Potentiometer concept

    Dude that's stuff on the potential divider, I need stuff on the potentiometer: specifically on how to use it to find unknown e.m.fs (the theory behind that, anyway)
  5. Scafalon40

    Potentiometer concept

    Yes yes that's all fine and good but it still doesn't explain what's happening inside the whole circuit, i.e what is the theory behind everything you stated.
  6. Scafalon40

    Physics: Post your doubts here!

    Confirming. Again, thank you.
  7. Scafalon40

    Potentiometer concept

    I don't understand how we use the potentiometer to measure the e.m.f of a cell I've been surfing the net, all I can find are articles stating how the e.m.f is determined practically, but I haven't found sufficient theory detail.:( If someone could explain it I would be grateful.(y)
  8. Scafalon40

    Physics: Post your doubts here!

    Alright, thankyou.:) Anyone else wan't to comment too?
  9. Scafalon40

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s10_qp_22.pdf Q6 part (b) Is that wire resistance wire or not: the question says 'A wire..' not 'The wire..'(read the question, you'll understand. If it's not resistance wire, isn't that...
  10. Scafalon40

    Physics: Post your doubts here!

    21
  11. Scafalon40

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s09_qp_2.pdf Q 5 please
  12. Scafalon40

    Chem Practical Variant 33/34 2012

    I will.:D Judging by your sentence structure,punctuation and grammar, I think "u" will ace it too it too.:D
  13. Scafalon40

    Chem Practical Variant 33/34 2012

    So you actually think your centre will be kind enough to hand you a copy of the "apparatus set up details and chemicals involved"(called confidential instructions, by the way:p )!:ROFLMAO: You can wait for those, I'll prepare for the piratical exams instead of relying on some corrupt official to...
  14. Scafalon40

    Uncertainties(i think it's spelled like that)

    Thanks
  15. Scafalon40

    Uncertainties(i think it's spelled like that)

    I see... You must've noticed this statement of 'range' over and over again in the marking schemes, but it always goes like this "if repeated readings have been taken then uncertainty can be half the range" does that mean that I do not have to use this method i.e I can just use the absolute...
  16. Scafalon40

    Chem Practical Variant 33/34 2012

    Guys one simple question: How do you expect others to know what will appear on a paper or not, its not like they can predict the future or anything... My simple advice would be to be prepared for anything I don't think CIE's papers follow any particular pattern of repeating questions after...
  17. Scafalon40

    Uncertainties(i think it's spelled like that)

    I read this: Relates to physics P3 Estimation of uncertainty and percentage uncertainty. In some papers you will be asked to calculate a simple percentage uncertainty or state the uncertainty in a measurement. When repeated readings have been done then it is expected that the uncertainty will...
  18. Scafalon40

    Chem Practical Variant 33/34 2012

    Yeah, A question on a wet practical and a question involving the microscope:LOL::ROFLMAO: Joking..again I think there will be a slide involving a plant tissue or lung tissue.
  19. Scafalon40

    Chem Practical Variant 33/34 2012

    A question on Tritration, a question on Qualitative analysis and/maybe a question on Physical Chemistry(e.g enthalpy changes, rates of reaction etc):LOL::ROFLMAO: Joking.. I think there may be something in a titration question about CuSO4
  20. Scafalon40

    Mathematics: Post your doubts here!

    Guys its just that the examiner report does not mention incidence where candidates round correctly, only incidences where they do incorrect rounding Though that 2 dp thing has got me thinking
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