A non conducting disc of radius R has surface charge density which varies with distancefrom the centre as σ (r) = \sigma_0[1+\sqrt{r/R}] where \sigma_0 is a constant. The disc rotates about its axis with angular velocity ω. If B is magnitude of magnetic induction at the centre then B/{\mu_0\sigma_0\omegaR} will be

TS EAMCET 7 May 2018 Shift 1 Solved Paper

Section: Physics

Question : 110 of 160

Marks: +1, -0

A non conducting disc of radius R has surface charge density which varies with distancefrom the centre as σ (r) = σ0[1+√

] where σ0 is a constant. The disc rotates about its axis with angular velocity ω. If B is magnitude of magnetic induction at the centre then

µ0σ0ωR

will be

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