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Aadarsh

I have a question. Please see the attachment and answer with explanation.

  • 2 years ago
  • 2 years ago

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  1. Aadarsh
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    • 2 years ago
  2. Aadarsh
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    Question number 41

    • 2 years ago
  3. Aadarsh
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    Question Number 30

    • 2 years ago
  4. Preetha
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    Hi Aadarsh, tell me what relationships have you learnt that would help you solve this?

    • 2 years ago
  5. Preetha
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    And what do you know about parallel circuits and series?

    • 2 years ago
  6. Aadarsh
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    In series connection, resistors are joined end to end. Current remains same. Effective resistance is greater than highest individual resistance.

    • 2 years ago
  7. Aadarsh
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    In parallel, just the opposite.

    • 2 years ago
  8. shaan_iitk
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    30 B option is correct... this is assuming all batteries have equal EMF..

    • 2 years ago
  9. Aadarsh
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    Question Number 49 also

    • 2 years ago
  10. Preetha
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    Shaan, can you lead Aadarsh through the answer?

    • 2 years ago
  11. Preetha
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    He will not be able to answer the next Q till he understands your logic.

    • 2 years ago
  12. Aadarsh
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    For question 30, can't D be the answer?

    • 2 years ago
  13. shaan_iitk
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    Non ..circuit D provides EMF of V while circuit A provides EMF of 3V ...

    • 2 years ago
  14. shaan_iitk
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    circuit B *

    • 2 years ago
  15. Aadarsh
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    But How?

    • 2 years ago
  16. Aadarsh
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    The other questions?

    • 2 years ago
  17. shaan_iitk
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    okk see I will go one by one.. 1) cannot be correct because circuit A provides more EMF assuming resistance to be the same we bulb would glow brighter in A. 2) is correct because the circuit load is distributed among the batteries and also the net power consumption by bulb in circuit B is lesser than A 3) is incorrect because yet again the circuit load is distributed in B and power consumption is less in B 4) is incorrect because of reasons already given

    • 2 years ago
  18. Aadarsh
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    Thanks a lot. Now please look at the other questions(41 and 49).

    • 2 years ago
  19. Preetha
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    Aadars, why don't you start working on it here. Shan will help, but yo should get started. How else will you get it during the test?

    • 2 years ago
  20. Aadarsh
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    Okay maaam. I am trying my best.

    • 2 years ago
  21. Preetha
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    Shaan, good work. Thanks for working through this. How is life at IITk?

    • 2 years ago
  22. Aadarsh
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    I think question number 41 - "A" is correct, and for question 49, "A" is correct. Not sure.

    • 2 years ago
  23. shaan_iitk
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    Lenz's law does not violate principle of energy hence the assertion is wrong for 41) ... for 41 D is the correct answer..

    • 2 years ago
  24. shaan_iitk
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    Hi preetha .. I am presently in IIMA ..I passed out of IITK

    • 2 years ago
  25. Aadarsh
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    Ooooooo. Okay okay. Got it. 49?

    • 2 years ago
  26. Preetha
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    Great. Thats the fast track to fame and fortune. You should write that in your profile.

    • 2 years ago
  27. Aadarsh
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    1) http://openstudy.com/study#/updates/4f256451e4b0a2a9c266e5ab

    • 2 years ago
  28. Aadarsh
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    2) http://openstudy.com/study#/updates/4f256099e4b0a2a9c266e43f

    • 2 years ago
  29. shaan_iitk
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    do you know why lenz's law is in tune with conservation of energy? think it has a very simple solution .. think logically.. hint is that induced EMF is such that it OPPOSES the change in flux..

    • 2 years ago
  30. Aadarsh
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    I have read the above statement. But completely forgot about the first assumption.

    • 2 years ago
  31. Aadarsh
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    question number 49? Is "A" correct?

    • 2 years ago
  32. shaan_iitk
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    I can't see 49

    • 2 years ago
  33. Aadarsh
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    Okay, did u see the other 2 links?

    • 2 years ago
  34. Aadarsh
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    Question Numebr 49

    • 2 years ago
  35. shaan_iitk
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    Google this .. I dunno about this question ... but pupil expands when there is dim light (to get more light ) .. somewhat like aperture of a camera but I am not sure whether it contracts when trying to see a distant object...

    • 2 years ago
  36. Aadarsh
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    Okay Then. Wat about ur opinion about the other 2 links?

    • 2 years ago
  37. Preetha
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    I think it is A. The pupil restricts the amount of light entering the eye. When you go from dark to light, it responds to protect the eye from an overload to the system

    • 2 years ago
  38. Aadarsh
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    Yeah, for the same analogy, I too wrote "A". Are u sure? Please see the links numbered 1 and 2.

    • 2 years ago
  39. Aadarsh
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    Plzzzzzzzzzzzzzzzzzzzzzzzzzzz do see the links and help.

    • 2 years ago
  40. Preetha
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    I answered your yellow light question. Where are these questions from? What level are you? School? College?

    • 2 years ago
  41. Aadarsh
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    I am in school, grade 10, CBSE from INDIA. THese questions are from NSTSE Stage 2.

    • 2 years ago
  42. Aadarsh
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    Atmosphere question?

    • 2 years ago
  43. Aadarsh
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    I got it. the option for the yellow question is "D". See this link: http://www.scribd.com/sadiq_noori/d/76372104-Quiz-Questions-and-Answers-Current-Affairs-Quiz-Questions-7

    • 2 years ago
  44. Aadarsh
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    Atmosphere question? Plzzzzzzzzz reply.

    • 2 years ago
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