Physics - EMI/AC Question with Solution | TestHub

A non–conducting ring of radius$R$having uniformly distributed charge$Q$starts rotating about$\mathrm{x}–\mathrm{x}\mathrm{\text{'}}$axis passing through diameter with an angular acceleration$\alpha$, as shown in the figure. Another small conducting ring having radius$a$$\left(a\ll R\right)$is kept fixed at the centre of the bigger ring is such a way that axis$\mathrm{xx}\mathrm{\text{'}}$is passing through its centre and perpendicular to its plane. If the resistance of the small ring is$r=1 \mathrm{\Omega },$find the induced current in it in$\mathrm{ampere}$.
(Given$q=\frac{16\times 10^2}{{\mu }_0} \mathrm{C},$$R=1 \mathrm{m}, a = 0.1 \mathrm{m}$,$\alpha =8 \mathrm{r}\mathrm{a}\mathrm{d} {\mathrm{s}}^{-2}$)