A rectangular coil of single trun, having area `A` , rotates in a uniform magnetic field
Channel: Doubtnut
Date: 2021-11-02

A rectangular coil of single trun, having area `A` , rotates in a uniform magnetic field `B` with an angular velocity `omega` about an axis prependicular to the field. If initially the plane of the coil is perpendicular to the field, then the average induced emf when it has rotate through `90^(@)` is