Solution

The flavour text calls back to the Nibbles puzzle and suggests that the circles in that puzzle are now significant.

The circles in this puzzle match exactly the positions of the circles in Maze. Overlaying the maze lines over the grid of letters from Nibbles yields the following. Each maze has exactly one word from Nibbles that doesn’t cross any of the maze lines. The solution word consists of the circled letters for those words.

RESISTORS