In what way does the variable ratio-arm improve the usefulness of the wheatsto

In what way does the variable ratio-arm improve the
usefulness of the wheatstone bridge?

Question Posted / mani2089

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In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?..

Answer / balaji

when ratio-arm value is low it is use to find very high
unknownimpedence value likewise when ratio-arm value is high
it is use to find very low unknownimpedence value

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