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  1. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    We don't take antibiotics in a viral infection so it's not a problem caused by using antibiotics. Also, the bacteria does become resistant/immune to the antibiotic. :confused:
  2. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    What's the right answer? None other than A make any sense :confused:
  3. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Oh yeah!! Thanks.
  4. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Physics, N12, region 1, paper 2 Q8bii. ammeter reading: increases voltmeter: decreases Is that correct? The marking scheme says something like 'same as ammeter' then says 'both are correct' in brackets? :confused:
  5. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Physics%20%285054%29/5054_w12_qp_21.pdf Q3, c i. Since we have to calculate the power SUPPLY, won't the voltmeter be across the battery? :confused:
  6. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Why are two different metals used in a thermocouple?
  7. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Probably that the direction of current is left to right, as indicated by the arrow.
  8. Hskk

    May Allah help us all.

    May Allah help us all.
    • Hskk
    • Profile post
  9. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    I. Get. It. *JumpsAroundClappingMerrily* :D
  10. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Which experiment?
  11. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    You see, voltage remains the same since the source(battery, mains etc) provides a definite amount that remains constant. So, if larger resistance equals more brightness, N03/Q25/P1 should be D. :confused:
  12. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Higher resistance= brighter lamp. Is this statement correct?
  13. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah, it should've been towards negative.
  14. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    Physics Matters pg 374. One of the reasons of choosing tungsten as the filament's metal in a lamp is its high resistivity. Higher resistance = higher temperature thus more light generated. According to the book, Y should be brighter. :confused:
  15. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    What will your answer be to N03/P1/Q25?
  16. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    A real image can be formed on a screen but a virtual image can not be.
  17. Hskk

    Biology; Chemistry; Physics: Post your doubts here!

    You all must be aware of these formulae: 1) Power=VI 2) P=I2R 3) P=V2/R In the second formula power and resistance is directly proportional while in the third they both are inversely proportional? :confused: Also, on what factor does the brightness of a lamp depend?
  18. Hskk

    (ALL NOTES) =) O-LEVEL 0R IGCSE + A-Level

    Thank you.
  19. Hskk

    (ALL NOTES) =) O-LEVEL 0R IGCSE + A-Level

    Olevel bio?
  20. Hskk

    Pakistan Studies, Islamiyat and Urdu: Post your doubts here!

    Where can I find Urdu A notes?
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