In the photo part of the lever is the fulcrum? cdab

it is b

fulcrum is a pivot point around which a lever turns, or something that plays a central role in or is in the center of a situation or activity. A pivot point around which a lever turns is an example of a fulcrum. A person around whom all activity revolves is an example of the fulcrum

It would Be   (B)

Explanation:

The reason behind the answer is because if you look at the picture b is the medium it is the thing holding all of it together

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

if they have a finite resultant