When the plane of the armature of an a.c. generator is parallel to the field, in which it is rotating

Question

When the plane of the armature of an a.c. generator is parallel to the field, in which it is rotating (A) both the flux linked and induced emf in the coil are zero (B) the flux linked with it is zero, while induced emf is maximum (C) flux linked is maximum while induced emf is zero (D) both the flux and emf have their respective maximum values

Tardigrade Admin · Accepted Answer

As φ=NAB cos 90°=0 ε=ε0 sin 90°=ε0 =maximum θ is the angle between the field and normal to the plane of the coil

Q. When the plane of the armature of an a.c. generator is parallel to the field, in which it is rotating

both the flux linked and induced emf in the coil are zero

the flux linked with it is zero, while induced emf is maximum

flux linked is maximum while induced emf is zero

both the flux and emf have their respective maximum values

As $ϕ = N A B cos 9 0^{\circ} = 0$
$ε = ε_{0} s in 9 0^{\circ} = ε_{0}$ =maximum
$θ$ is the angle between the field and normal to the plane of the coil

Q. When the plane of the armature of an a.c. generator is parallel to the field, in which it is rotating

both the flux linked and induced emf in the coil are zero

the flux linked with it is zero, while induced emf is maximum

flux linked is maximum while induced emf is zero

both the flux and emf have their respective maximum values

As ϕ=NABcos90∘=0 ε=ε0​sin90∘=ε0​ =maximum θ is the angle between the field and normal to the plane of the coil

As $ϕ = N A B cos 9 0^{\circ} = 0$
$ε = ε_{0} s in 9 0^{\circ} = ε_{0}$ =maximum
$θ$ is the angle between the field and normal to the plane of the coil