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  4. In an ac generator, a rectangular coil of 100 turns each having area 14 × 10-2 m 2 is rotated at 360 rev / min about an axis perpendicular to a uniform magnetic field of magnitude 3.0 T. The maximum value of the emf produced will be V. (. Take .π=(22/7))

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Q. In an ac generator, a rectangular coil of $100$ turns each having area $14 \times 10^{-2} m ^2$ is rotated at $360$ rev / min about an axis perpendicular to a uniform magnetic field of magnitude $3.0 \,T$. The maximum value of the emf produced will be ________ $V$.
$\left(\right.$ Take $\left.\pi=\frac{22}{7}\right)$

JEE MainJEE Main 2023Alternating Current

Solution:

$ \xi_{\max }= NAB \omega $
$ =100 \times 14 \times 10^{-2} \times 3 \times \frac{360 \times 2 \pi}{60} $
$=1584\, V $