Class 12 CBSE l Physics l Theory of practicals l figure of merit l half deflection method

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  • เผยแพร่เมื่อ 28 พ.ย. 2024

ความคิดเห็น • 43

  • @_N_E_E_R_A_J_
    @_N_E_E_R_A_J_ 5 ปีที่แล้ว +22

    Excellent sir I was looking for this only on TH-cam.

  • @tanishk2005
    @tanishk2005 3 ปีที่แล้ว +9

    This is the explanation what I want or a good student want to learn...
    Thank you sir for this dedicated hard work.

  • @kuch.rang.edits.ke.
    @kuch.rang.edits.ke. 7 หลายเดือนก่อน

    Excellent explanation. Was looking for a good video for the last 30 mins and then came across this. Thank you ❤❤❤❤

  • @सौमित्रकुमार
    @सौमित्रकुमार 5 ปีที่แล้ว +4

    Too good sir.. i found you to be so underated.. You teach so good.. people go for quantity then for quality..thank you sir..

  • @infinitentertainment8099
    @infinitentertainment8099 5 ปีที่แล้ว

    Very good such .... really helpful

  • @farhanbutt7866
    @farhanbutt7866 2 ปีที่แล้ว

    outstanding sir. very thankful to you.

  • @TheEccentricOfficial
    @TheEccentricOfficial ปีที่แล้ว +1

    Great explanation

  • @harikrishna1347
    @harikrishna1347 6 ปีที่แล้ว +3

    slow and excellent explanation

  • @krishnanand7014
    @krishnanand7014 ปีที่แล้ว

    This is what I was searching for long times.

  • @debarghyaghosh2795
    @debarghyaghosh2795 3 ปีที่แล้ว

    Wonderfully explained sir. Thank you so much. Understood every bit of it clearly.

  • @meenakshi1456
    @meenakshi1456 3 ปีที่แล้ว +1

    Thanks a lot sir for this helpful video...me and my friend were able to understand the concept really well

  • @tanishakumar8831
    @tanishakumar8831 10 หลายเดือนก่อน +1

    it took me so long to find a video explaining the concept behind the method....

  • @tanmayloshali8760
    @tanmayloshali8760 3 ปีที่แล้ว

    thank you sir. I FOUND THIS HIGHLY HELPFUL.

  • @nchaitu2003
    @nchaitu2003 4 ปีที่แล้ว

    Thank you sir.!
    Great Explanation!!

  • @k.p7873
    @k.p7873 5 ปีที่แล้ว +1

    Nice... Sir

  • @RajkumarS-q7j
    @RajkumarS-q7j 11 หลายเดือนก่อน

    Sir I have a doubt while calculating the current while the key is plugged in and letting the current pass through shunt resistance, why is the I prime equal to (E/(R+(GS/G+S))) × (S /(G+S)) why did we just multiply that extra quantity of Reciprocals or something

  • @rashimeena2401
    @rashimeena2401 3 ปีที่แล้ว

    Thank u sir for an amazing video,it actually helped me with my practicals.😄😄😄

  • @QutamReach
    @QutamReach 9 หลายเดือนก่อน

    Thank you so much sir 😌

  • @whyanubhav
    @whyanubhav 4 ปีที่แล้ว

    finally got this topic ... very nice explanation sir

  • @saiteja8576
    @saiteja8576 3 ปีที่แล้ว

    Thank you sir, the video was very useful
    I was able to understand the procedure but I did not understand theory behind it
    You made it very clear , I am more confident in my practical now 👍👍👍
    Thanks a lot again sir ❤️

  • @darkstar2346
    @darkstar2346 3 ปีที่แล้ว

    Sir you made this so easy for me

  • @ishansoni-official261
    @ishansoni-official261 3 ปีที่แล้ว

    Brilliantly explained sir.... In our school we were told to just memorize the formula.... But i always wanted to learn and observe all the formulaes and theory behind them... This also made me clear that why we take only half deflection of the galavanometer when key for shunt resistance is on.... Which is done as to a get us a simple formula for G = RS/R-S.... Otherwise that wouldn't come for sure...
    But ya i wanted to ask if the figure of merit remains constant for a particular galvanometer.... Bcz if it is constant then only current will get half due to half deflection as I = k(theta)
    Third and the lastly I wanted to ask sir .... If I/2 current flown in galvanometer after suitable value of shunt resistance ..(assuming before key was on there was I ampere)... Then does that mean exactly I/2 also flow through that shunt resistance.... Because to do that the ratio of G and S must be 1 then only current drawn will be same by both... And if we look in the formula G = RS/R-S.... Then if i approximate by R>>>>>S then G=S....
    So can we convey that same I/2 current flows through the shunt resistance and I current through the circuit??? But don't you think doing so will violate the effective resistance ??
    Because when key was off then
    Reff= R+G
    After key was on then
    Reff= R + GS/S+G = R+ G/2
    This would also change the net current through the circuit...So how can this be possible?? Is this contradiction due to our assumption that we made for G =S?
    Please answer if possible... It would help me a lot.

    • @panneerselvam9802
      @panneerselvam9802  3 ปีที่แล้ว

      First of all, thank you for the interaction
      For a given galvanometer, ‘the figure of merit’ is constant.
      In the second part of the experiment, the current through the galvanometer is , no doubt I/2. But the main current in the circuit is now I1. Therefore, the current through the shunt resistance is I1 -(I/2)

    • @ishansoni-official261
      @ishansoni-official261 3 ปีที่แล้ว

      @@panneerselvam9802 thank you very much sir for your immediate reply☺️

    • @bepositive325
      @bepositive325 2 ปีที่แล้ว

      Hey please explain me

  • @yashbhinwal2801
    @yashbhinwal2801 5 ปีที่แล้ว +1

    Excellent !

  • @mujtabajahangir1092
    @mujtabajahangir1092 5 ปีที่แล้ว

    Thank you sir

  • @bepositive325
    @bepositive325 2 ปีที่แล้ว

    Tq sir

  • @jyotirai9931
    @jyotirai9931 6 ปีที่แล้ว +1

    really good

  • @fathimashirin5220
    @fathimashirin5220 3 ปีที่แล้ว

    Thank you sir

  • @shabnamkhanam5987
    @shabnamkhanam5987 9 หลายเดือนก่อน

    thank you sir