• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. good man12

    Physics Paper 12 How was it

    yes, our sir taught it to us ...........so its gotta be..any ways i even searched on net and it was writtenthat wires with smaller cross section have greater drift velocity of electrons, the displacement one was the sine curve they gave, and we had to convert that velocity time graph to...
  2. good man12

    AS Physics P1 MCQs Preparation Thread.

    it was a curve begining from s=0 and ending at s=0 also.............
  3. good man12

    AS Physics P1 MCQs Preparation Thread.

    dude, only A was correct............................
  4. good man12

    Physics Paper 12 How was it

    option was D, but the question stated that currentin both wires was the SAME.
  5. good man12

    Physics Paper 12 How was it

    I= navq...since n is the same, and q is the same, therfore a is inversely proportional to the velocity, so if area is less, velocity is greater....new A level concept....not in many books though, its called current formula Velocity=Current/(n*area*q) where n is electrons per meter cubed, area...
  6. good man12

    Physics Paper 12 How was it

    i thnk much the same
  7. good man12

    Physics Paper 12 How was it

    the block was going to move in the anti clock wise direction, so the torque had to be applied in the clock wise direction to keep it at equilibrium WL/2 was the force........the torque how ever was WL/4
  8. good man12

    Physics Paper 12 How was it

    kindly tell me which are wrong so i can get an accurate estimate of my marks.....i think at most only 4 max can be wrong.........
  9. good man12

    Physics Paper 12 How was it

    sorry for that minor argument, i totally forgot to add atmospheric pressure, you were right, and what was ur answer for the stationery wave one and what was for the one about two copper wires with variable diameters and the electron speed in them, i used I=navq to solve it qualitatively
  10. good man12

    Physics Paper 12 How was it

    it was the time taken for the wave front to reach point p which was : 3lamba/c
  11. good man12

    Physics Paper 12 How was it

    sorry, then in that case it may be wrong........but im still not remembering what they asked for
  12. good man12

    Physics Paper 12 How was it

    did they ask pressure difference or gas pressure?
  13. good man12

    Physics Paper 12 How was it

    atmospheric pressure is 100000 pa = 100000N m squared.....i have never seen a test tube in my life with a surface area of 1 m squared, so how can u justify that 100,000 newtons is acting on it!!!!!!!!!!!!!it does act but it is negligible................
  14. good man12

    Physics Paper 12 How was it

    wL/4 clockwise
  15. good man12

    Physics Paper 12 How was it

  16. good man12

    Physics Paper 12 How was it

    we werent suposed to add atmospheric pressure in the gas question so it was B the o.5 one, and i checked the momentum one, the options got switched around so it was wrong,. and im certain in pressure one since pressure was constant, the collisions with piston remain the same, else pressure...
  17. good man12

    Physics Paper 12 How was it

    vectord was d, rsin0, and rcos0
  18. good man12

    Physics Paper 12 How was it

    sorry for untidiness
  19. good man12

    Physics Paper 12 How was it

    they gave a point in the question that the pressure remains constant, so then the frequency of collisions remains same.....if the collisions increased the pressure should have also increases, .the seperation does increase when heated and expanded, and they asked which statement does NOT...
  20. good man12

    Physics Paper 12 How was it

    yeah, option changed.......
Top