Help for current sensitivity

Discussion in 'Homework Help' started by siddharth mittal, Oct 20, 2008.

  1. siddharth mittal

    Thread Starter Member

    Oct 14, 2008
    23
    0
    pls. tell me what is the meaning of current senitivity of a galvanometer.....
    i mean if the current sensitivity of a galvanometer is 10mm/μA then what does it mean?

    Let's say the current sensitivity of a galvanometer is 10mm/μA and 1μA current flows through that galvanometer then the deflection of the galvanometer would be 1μA *10mm/μA=10mm

    i know that the galvanometer shows defelection for current but here it shows 10mm .........what does it mean???????????

    i got this problem when i was studying abt wheatstone bridge


    pls. Help!!!!!!!
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    It means that for every 1uA increase in current, the needle moves 10mm.
     
  3. siddharth mittal

    Thread Starter Member

    Oct 14, 2008
    23
    0
    but what i knows is that galvanometer shows reading through angular defelection.......so how can it defelect by 10mm??????????
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Arcs have length.
     
  5. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,176
    397
    " what does it mean " It means 1μ A is flowing through the galvanometer.
     
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