65 °C
3 9  ELECTRICAL ENERGY, POWER
Consider a conductor with end points A and B, in which a current I is
flowing from A to B The electric potential at A and B are denoted by V(A)
and V(B) respectively Since current is flowing from A to B, V(A) > V(B)
and the potential difference across  AB is V = V(A) – V(B) > 0