JEE Advanced 2020 Paper 1 Physics Q11

Physics · Current Electricity

Problem

Shown in the figure is a semicircular metallic strip that has thickness t and resistivity ρ. Its inner radius is R₁ and outer radius is R₂. If a voltage V₀ is applied between its two ends, a current I flows in it. In addition, it is observed that a transverse voltage ΔV develops between its inner and outer surfaces due to purely kinetic effects of moving electrons (ignore any role of the magnetic field due to the current). Then (figure is schematic and not drawn to scale)

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