A coil of area A and N turns is rotating with angular velocity \(\omega\) in a uniform magnetic field \(\vec{B}\) about an axis perpendicular to \(\vec{B}\). Magnetic flux \(\phi\) and induced emf \(\epsilon\) across it, at an instant when \(\vec{B}\) is parallel to the plane of coil, are :

[JEE Main 2025, 29 Jan (Shift 1)]

Question

A coil of area A and N turns is rotating with angular velocity \(\omega\) in a uniform magnetic field \(\vec{B}\) about an axis perpendicular to \(\vec{B}\). Magnetic flux \(\phi\) and induced emf \(\epsilon\) across it, at an instant when \(\vec{B}\) is parallel to the plane of coil, are :

[JEE Main 2025, 29 Jan (Shift 1)]

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