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प्रश्न
Which diagonal in a Wheatstone bridge serves as the galvanometer arm?
पर्याय
BC
AD
BD
AC
MCQ
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उत्तर
BD is the galvanometer arm in a standard Wheatstone bridge, which is the diagonal across which the galvanometer is connected. The galvanometer detects the potential difference between the two midpoints of the bridge arms, showing zero deflection when the bridge is balanced.
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