Draw Wheatstone bridge and write the condition for balance.

1.	Draw Wheatstone bridge and write the condition for balance.
Answer» Solution : `(R _(1))/( R _(2)) = (R _(3))/( R_(4)) or ( P)/(Q) = (R)/(S)` or ` I _(G) =0` or p.d. across the galvanometer is zero.

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Draw Wheatstone bridge and write the condition for balance.

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