PhysicsMedium226×since 2002Q6510A uniform wire of length 1 and radius r has a resistance of 100 Ω\OmegaΩ. It is recast into a wire of radius r2.{r \over 2}.2r. The resistance of new wire will be :A1600 Ω\OmegaΩB400 Ω\OmegaΩC200 Ω\OmegaΩD100 Ω\OmegaΩCheck answerSkip