Physics · Current Electricity

A cylindrical wire AB consists of three equal lengths AC, CD, and DB made of the same uniform material, but having different cross-sectional radii of 2r, 1.5r, and r, respectively. If a constant current flows through the wire, what is the ratio of potential differences V1 : V2 : V3 across AC, CD, and DB respectively?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

9 : 16 : 36

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