Shown in the figure adjacent is a meter-bridge set up with null deflection in the…

Physics · JEE Advanced · NTA Exams — Current Electricity

Shown in the figure adjacent is a meter-bridge set up with null deflection in the galvanometer. The value of the unknown resistor R is

1. 13.75 Ω
2. 220 Ω
3. 110 Ω
4. 55 Ω

Answer

(B) 220 Ω

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