If a stack of 40 solid oxide fuel cells in series generates 1,000 W of power, and each cell contributes equally to the power of the stack, how much power does each cell contribute?

Since all 40 cells contribute equally, divide the stack’s total power by the number of cells: 1,000 W ÷ 40 = 25 W per cell. The correct choice is 25 W.

AI-written and checked against the verified answer.