Energy Stored in an Inductor - Georgia State University
Energy in an Inductor. When a electric current is flowing in an inductor, there is energy stored in the magnetic field.Considering a pure inductor L, the instantaneous power which must be supplied to initiate the current in the inductor is . so the energy input to build to a final current i is given by the integral
Equipotential Lines - Georgia State University
Equipotential Lines. Equipotential lines are like contour lines on a map which trace lines of equal altitude. In this case the "altitude" is electric potential or voltage.Equipotential lines are always perpendicular to the electric field.In three dimensions, the lines form equipotential surfaces.