The paper puts forward the study about theamplitude、distribution of induced earth surface potential and effects on the power grid basedon the discovered relative fact.

By means of this new method, the nonorthogonally induced voltage risen in the ground resistance measurement can be overcomed practically and the problem of using one circuit overhead line for the ground resistance measurement of large grounding grid is solved.

Taking parameter variation into account, a new model of the induced electromotive force relation of a permanent magnet synchronous motor (PMSM) was presented.

The induced electromotive force at the secondary coil can be got by changing the flux of the primary coil.

With the specular-reflection model, the induced potential for a swift diatomic molecular ion moving near a metal surface is investigated.

Measuring AC magnetic permeability by induced electromotive force;

This article discusses the transformatoin of induced electromotive force under the condition of relativistic transformatoin, the motion－produced electromotive force do not transfer into induction－produced eletromotive force according to difference of choices of reference system.