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Electronic measurements and instrumentation miscellaneous

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Electronic Measurements And Instrumentation

Electronic measurements and instrumentation miscellaneous
  1. The Wien bridge circuit shown in the below can be used as a frequency measuring device, provided:


    1. R2/R4 = 2
    2. R4/R2 = 2
    3. R2R4 = 4
    4. R2/R4 = 3
Correct Option: A

The given circuit represent weinbridge. Under the balanced condition the ratio of resistances. i.e.

S =
R2
= 2
R4


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