1 A coil is mechanically rotated with constant angular speed (w) in a uniform magnetic field which is parallel to - Physics - Electromagnetic Induction

Question

1 A coil is mechanically rotated with constant angular speed (w)
in a uniform magnetic field which is parallel to the axis of
rotation of the coil, the plane of the coil initially held
perpendicular to the field Plot a trap showing variation of 1
Magnetic flux 2 The induced emf in the coil as a function of
(wt)

Abhay Kumar · Accepted Answer

All the terms, symbols and notation used below are in context with
NCERT textbook
Since we know that,Magnetic flux(ϕ): B
dA initially held perpendicular to the field means the graph for flux starts from the peakgiving a cos term in flux
 as Initially angle b/w magnetic field and area is zero
ϕ = BAcos(ωt)Emf= -dϕ/dt =BAwsin(wt) 
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