Wheatstone's Bridge | An Important Application of Kirchoff's Law | Tamil Physics

An important application of Kirchoff’s law is the Wheatstone’s bridge (Tamil Physics). Wheatstone’s network consists of resistances P, Q, R and S connected to form a closed path. A cell of emf E is connected between points A and C. The current I from the cell is divided into I1, I2, I3 and I4 across the four branches. The current through the galvanometer is Ig. The resistance of galvanometer is G.

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