1.

The balance condition of a Wheatstone bridge depends on the _________

A. ratio of arms R<sub>1</sub> and R<sub>1</sub>
B. ratio of arms R<sub>3</sub> and R<sub>4</sub>
C. emf source and null detector
D. current source and power source
Answer» B. ratio of arms R<sub>3</sub> and R<sub>4</sub>


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