Inductor stored energy grows with current squared, so evenly spaced current values do not produce evenly spaced energy values. The 2 H rows are exact ideal-energy ledgers; real inductors bring saturation, winding loss, temperature drift, core loss, current-sense error, and uncertainty in the effective inductance.
The stored-energy square law is scanned with three current rows. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Energy squares current before multiplying by inductance
The inductor stays fixed. The changing quantity is current, and the energy row uses current squared.
E=21LI2
Current-square rows make the nonlinear step visible
The current values move evenly, but energy does not. Squaring the current creates the larger jumps.
L2H2H2HI2A4A6AI⋅I41636E4J16J36J
The checked energy row carries the square-current result
The accepted energy label is generated from the same inductance and current shown in the diagram.