Name the type of forces involved in the following situations: a) A rolling ball stops after covering some distance.
b) A magnet attracts a piece of iron.
c) Every object in the universe is attracted to each other.

a. Frictional force

b. Magnetic force

c. Gravitational force

frictional force

magnetic force

gravitational force

hope this helps!

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