For a simple AC generator, the value of the induced voltage in the armature loop is maximum when the orientation of the armature as compared to the magnetic field is
A)at a node.
B)45 degrees.
C)90 degrees.
D)180 degrees.

Question

Quizplus · Accepted Answer

The induced voltage in an armature loop of a simple AC generator is maximum when the orientation of the armature as compared to the magnetic field is perpendicular or 90 degrees. This is because the magnetic flux passing through the loop is maximum in this orientation and hence, the rate of change of flux is maximum which results in maximum induced voltage. At 180 degrees, the induced voltage is zero as the magnetic field is parallel to the armature and hence, there is no change in the magnetic flux passing through the loop. At 45 degrees, the induced voltage will be less than the maximum as the component of magnetic flux perpendicular to the loop will be less. At a node, the induced voltage will be zero.

For a Simple AC Generator, the Value of the Induced