AP EAPCET 6 Sep 2021 Shift 1 Paper

A coil of area 10m2 is placed in a uniform magnetic field of 0.3Wb⋅m−2, with its plane perpendicular to the field. The coil rotates at a uniform rate to complete one revolution in 8s. Find the average emf in the coil during intervals when the coil rotates from (i) 0∘ to 90∘, (ii) 90∘ to 180∘. (iii) 180∘ to 270∘, (iv) 270∘ to 360∘