"the axis of rotation of a ac generator is perpendicular to the field" If this happens then shouldnt be the flux zero because angle between field and area is 90 and cos90 is zero
Dear Student
It means that the angle between area vector and field is zero because area vector is perpendicular to area so cos 0 becomes 1.
Regards
It means that the angle between area vector and field is zero because area vector is perpendicular to area so cos 0 becomes 1.
Regards