A bridge network has arm resistances ,

PHYSICS · Subjective · CBSE · Physics · Current Electricity · Current Electricity

Problem

A bridge network has arm resistances R1=120 ΩR_1 = 120\,\Omega, R2=180 ΩR_2 = 180\,\Omega, R3=200 ΩR_3 = 200\,\Omega and R4=220 ΩR_4 = 220\,\Omega. The bridge branch contains a resistor Rg=50 ΩR_g = 50\,\Omega. A 12 V12\,\text{V} source is connected across the pair of opposite junctions. Calculate the magnitude and direction of the current through the 50 Ω50\,\Omega resistor.

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