Alternating Current Part 2

A square shaped coil of area 70cm2 having 600 turns rotates in a magnetic field of 0.4wbm−2, about an axis which is parallel to one of the side of the coil and perpendicular to the direction of field. If the coil completes 500 revolution in a minute, the instantaneous emf when the plane of the coil is inclined at 60∘ with the field, will be ______ V. (Take π=‌

22

7

)