<^< Flux Linkage and Current | Course Index | Examples: Inductance >^>
Graph of energy stored related to flux linkage and currentThe energy stored in an inductor is the area under the graph of flux linkage (N Φ) plotted against current (I). This area is given by:
Area = half height times base
= ½ (N Φ) I
Since L I = N Φ:
Area = ½ (L I) x I
Thus the energy stored in an inductor is proportional to the product of the inductance and the square of the current, i.e.
E = ½ L I2
where E is the energy (in Joules), L is the inductance (in Henries), and I is the current (in Amps).
<^< Flux Linkage and Current | Course index | Examples: Inductance >^>
