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  1. S

    Kirchhoff’s laws HELP...

    Always take the convectional direction of current. the emf in the convectional direction(i.e positive to negative) are always positive. take a reference emf. anyone as u like. compare the direction of other emf with ur reference emf. if it is in the same direction add it and if it is in the...
  2. S

    notes of chromatography....

    there is more than we need...plez go through the topics that we need only....
  3. S

    physics p5.....hall probe

    it is predicted to ask the question related to either hall probe or cathode ray oscilloscope this year.... and till now i don't know anything about hall probe.... can anyone help me? please post what u know about hall probe...
  4. S

    physics p22...please, help me

    the question states that the coherent red light is used in the experiment. so the wavelength of red light lies within the range of 750nm and 550nm. use a value within the range. i prefer to use 650nm. the distance(D) between the slit and screen is 2.4m the slit width(x) is 0.86mm. i.e 0.00086m...
  5. S

    physics p22...please, help me

    can you please help me with the answer of part "C"
  6. S

    physics p22...please, help me

    there is a figure u need to go through.....i cant post the figure here....someone plez help me....
  7. S

    physics p22...please, help me

    http://www.xtremepapers.me/CIE/International%20A%20And%20AS%20Level/9702%20-%20Physics/9702_w10_qp_21.pdf if u wish to help me, please, go through the url and give me the solution of 3 (c)
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