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Current Electricity

Section: Physics

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Two resistances R1=XΩ and R2=1Ω are connected to a wire AB of uniform resistivity, as shown in the figure. The radius of the wire varies linearly along its axis from 0.2‌mm at A to 1‌mm at B. A galvanometer (G) connected to the center of the wire, 50‌cm from each end along its axis, shows zero deflection when A and B are connected to a battery. The value of X is

[JEE Adv 2022 P2]

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