On an electric stove, does the smaller burner produce fewer BTUs than the larger burner? I have a US electric oven/stove combination with four stove burners, two smaller and two larger.  I feel the stove is already a bit anemic so I want to make sure I am getting the maximum energy out of the stove, but I also like using smaller pans on the smaller burner.  Do typical US electric stoves put the same amount of total energy (i.e., the same amount of BTUs) through the smaller burners as through the larger burners, or are the smaller burners also lower energy?
Electric stove elements have a different KW rating depending on construction and size

A typical spiral element of 200 mm (8") diameter will be 2 KW, a 150 mm (6") diameter element will be 1.3 KW

Different stove makes and models have different ratings. But not many go above 2 KW, except in USA where they go up to 3 KW

Stove makers usually publish exact specifications on their web sites

1 W is approximately 3.4 BTU