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  1. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Could you give a more detailed ans?If energy is being given out,why is KE constant? Awesome12
  2. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    A cuz others cant penetrate the skull
  3. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Between 3 and 16 minutes, the temperature of the wax is above room temperature and energy is lost to the room. Explain, in terms of molecules, why the temperature of the wax remains constant. So the wax is solidifying in this question.How to answer?
  4. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    aap ki drawing ko salute
  5. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    If it is closed the current will bypass the resistor.Thus we have to make current pass through it.Carefully see the diagram.
  6. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Internet par mila bhai :P 7 is C since if we move weight closer,there will be less distance from pivot and less torque so other end will move down to less torque on one end. 29 is B cuz we close s1 n s2 to get a combined resistance of 1.5 and open s3 to make current flow through 4.5 ohm...
  7. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

  8. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    300 x 60 x 60 = 1080000 J Since 300 watts are used per second then we simply multiply
  9. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Oops yeah i didnt see in 4 correctly,that would be A.Draw a clockwise rotation and they both would have same direction of current that would cause the compass to be so. And i dont get 3 though i suppose it would be about the bulbs being in parallel.
  10. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Me :P
  11. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    1.Draw a parallelogram to find the resultant.Ans is B it think. 2.Ans is A?Cuz if you reverse connections with diode going to the positive,it'll rectify the current if attached with negative and wont allow current to flow 3.Ans is A? 4.Ans is C?
  12. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    In DC there are SPLIT rings that reverse the current every half cycle leading to a continuous rotation In AC there are SLIP rings that allow the wires to carry the emf to the accumulator(cell/battery) easily and without them being entangled in each other. And in BOTH i think the purpose of...
  13. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Why would it be half?the speed is 0.05 m/s or 5 cm/s and thats the distance travelled in one second.You should revise the waves chapter to clear your concepts.
  14. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Guys can you explain the i/v graph of a filament lamp and a thermistor?
  15. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    No.I used the power.Often if the question is linked it would be followed by letters like if rating was involved it would be a)iii) instead of b).A new part indicates a whole new side usually.This hint can help you to find out what to include in the answers.
  16. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Time =25/60=0.416 Hours Cost=9.6x0.416x21=84 cents
  17. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah i guess that would make more sense.
  18. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Is the answer D?They act in different directions so no matter where they act,it can never add up and be greater than 50.
  19. asadalam

    <----Results dekhne k bad

    <----Results dekhne k bad
  20. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    SI unit is joules not kilojoules and we always use si units in calculations
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