In a uniform magnetic field of induction B , a wire in the form of semicircle of radius r…

Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents

1. \(\frac{\mathrm{B} \pi \mathrm{r}^{2} \omega}{2 \mathrm{R}}\)
2. \(\frac{\left(\mathrm{B} \pi \mathrm{r}^{2} \omega\right)^{2}}{8 \mathrm{R}}\)
3. \(\frac{(\mathrm{B} \pi \mathrm{r} \omega)^{2}}{8 \mathrm{R}}\)
4. \(\frac{\left(\mathrm{B} \pi \mathrm{r} \omega^{2}\right)^{2}}{8 \mathrm{R}}\)

Answer

(B) ( B r ^ 2 )^ 2 8 R

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