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  1. dao dai

    Physics: Post your doubts here!

    Need help on Q9 b) http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_42.pdf I understand that voltage gain=-Rf/Ri but why when the gain = 2, it shows that G = 2 in the equation VOUT= –(4VA + GVB + VC)
  2. dao dai

    Hey Thanks for the help. But im still confused about Q5 b ii) for that may/june 2010 physics...

    Hey Thanks for the help. But im still confused about Q5 b ii) for that may/june 2010 physics paper What made you use 180Coloumbs for the capacitors in parallel? Is it because when capacitors are in series they have the same charge, so you treat the 2 resistors in parallel as 1 capacitor??
    • dao dai
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  3. dao dai

    Physics: Post your doubts here!

    Question 5 b) and c) please http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s10_qp_43.pdf
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