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  1. biscuitbiscuit

    Physics: Post your doubts here!

    a) Power is directly proportional to V^2, Resistance is constant. Therefore % reduction is, (230)^2-(220)^2/(230)^2*100 = 8.5% b)(i) ammeter reading would be zero since p.d. is zero when C is at A (ii) at B the p.d. would be 1.5 and according to the formula, I=V/R, I= 1.5/0.5= 0.3A c(i) You...
  2. biscuitbiscuit

    Physics: Post your doubts here!

    Yeah
  3. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s10_qp_22.pdf 'Q6(d)', pleasee
  4. biscuitbiscuit

    Physics: Post your doubts here!

    Thank you sooo much! :)
  5. biscuitbiscuit

    Physics: Post your doubts here!

    In previous post you said that voltage across 'C' would be 5v out of 7, how did you get that?
  6. biscuitbiscuit

    Physics: Post your doubts here!

    This is what i don't get, after 5V for the same current resistor R has greater voltage than component C
  7. biscuitbiscuit

    Physics: Post your doubts here!

    This question someone!
  8. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w04_qp_2.pdf "Q6(c), i don't get it how p.d. across C would be larger than R?
  9. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w04_qp_2.pdf "Q6(a)(i)", I didn't get the marking scheme on this one but is the answer something like this that resistance decreases with increasing p.d. since its an increasing curve...
  10. biscuitbiscuit

    Physics: Post your doubts here!

    :)
  11. biscuitbiscuit

    Physics: Post your doubts here!

    Still didn't get it, the graph shows the power dissipation decreases! as the value of X increases
  12. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_21.pdf Can you explain Q6(d), please?
  13. biscuitbiscuit

    Physics: Post your doubts here!

    Ahhh!!!! this was so easy, thank you anyways
  14. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w05_qp_2.pdf "Q7 b(ii)1", why is it 2.7 when the volt metre says zero
  15. biscuitbiscuit

    Physics: Post your doubts here!

    Thanks :)
  16. biscuitbiscuit

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s11_qp_21.pdf Q5 (b), someone please solve it
  17. biscuitbiscuit

    Physics: Post your doubts here!

    Thanks, the second part is strange!
  18. biscuitbiscuit

    Physics: Post your doubts here!

    Someone please solve "Q1 (a)(i)(ii) ", link: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s10_qp_23.pdf
  19. biscuitbiscuit

    Physics: Post your doubts here!

    Hey does anyone have notes on 'CRO', I need them badly?
  20. biscuitbiscuit

    HI I M NEW HERE :D

    Welcome :)
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