In order for a current to be maintained through a conductor a difference in
must be maintained from one end of the conductor to the other
end.
potential
power
resistance
conductivity

Potential

Explanation:

Potential difference is otherwise known as voltage. With no voltage flowing through a conductor a current will not flow.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.