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  1. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    I also got 68 ohms but the current given is for 1.7 V, the circuit is of 9 V. They want us to calculate for the whole circuit, R=9/0.025 (current is same throughout). Then subtract 68 ohms from this. I have no idea why. :p
  2. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    What answer are you getting here?
  3. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Definition of Moments: Moment is the turning effect of a force. Here the turning effect of the force is equal at all points, the coil is rotating with equal turning effects all the time. The two forces are given to confuse you. Its like considering this on a pivot, the two forces are at the same...
  4. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    I did not see the page numbers! I got confused by the two (b) parts under question 8.
  5. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Einstein Baba Saeen Einstein!
  6. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Hota hai. Kbhi kbhi har net operator ka dimagh kharab hojata hai. :p Sbse zyada PTCL ka hota hai.
  7. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Naalayk koe nhi hota. Har koe kisi na kisi cheez main genius hota hai. Net slow? Kbhi kbhi tou xtremepapers ka server mar jata hai mere paas! :p
  8. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Main tmhe naalayk nhi keh rha :p Tumny jawab deny main buhat dair krdi ;)
  9. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Usko laga hoga k jawab nhi milnay wala tou chala gaya :p
  10. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    :p
  11. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    You're right, the coil is rotating clock-wise (one direction) hence the total moment = moment at AB or moment at CD = 20*4 = 80 N cm = 0.8 N m.
  12. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Which (b)? :p There are two (b)'s.
  13. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Yes, that's why we wash flasks only with water! :)
  14. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Well yeah, if you know the units, you know the conversions and the equations! Simple as that, no need to memorize anything, no need to get confused. :)
  15. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Thanks for the 100th like! :D
  16. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    :)
  17. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Yes we are, The unit for specific heat capacity is J/kg deg. C. This means that the Specific heat capacity = 7400/(temp. diff. * 0.072) J/kg deg, C.
  18. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah, sure.
  19. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    No problem. I just asked because I'm going offline. :)
  20. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Do you have any more queries?
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