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Homework Help: Wheatstone bridge ?

  1. Mar 19, 2008 #1
    1. The problem statement, all variables and given/known data

    Will the balancing condition get modified in Wheatstone bridge if AC source is used instead of a battery ?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 19, 2008 #2


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    Science Advisor

    No, but if you use a galvanometer (as is usual) as a detector, it wouldn't move.
    You would need an AC meter, which probably woudn't be as sensitive as a galvanometer.
  4. Mar 22, 2008 #3
    A hot wire galvanometer would also work-- if you could find them.

    In fact, instruments are made that are AC bridges. Select a frequency, amplitude and the spieces of impedence, inductance, ESR and so forth, that you want numbers for, and they display the effective values.
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