This option represents an expression that is often used to calculate the induced electromotive force (emf) in an AC generator when the coil is rotated in a magnetic field. It accounts for the angle θ between the magnetic field and the normal to the coil's plane.
This option represents a similar expression to the one in option A, but it uses the cosine function instead of sine to calculate the induced emf.
This option simplifies the expression by assuming that θ is 0 degrees (cosine of 0 is 1). It represents the maximum induced emf when the coil is perpendicular to the magnetic field.
This option represents an expression for the force experienced by a current-carrying wire in a magnetic field (Lorentz force), but it is not the expression for the emf produced by an AC generator.
The correct statement is A. NωAB Sinθ. This expression represents the emf produced by an AC generator when the coil is rotated in a magnetic field with an angle θ between the field and the coil's plane.