Bronfenbrenner's final level is the macrosystem, which is the largest and most remote set of people and things to a child but which still has a great influence over the child.
Term EMF is acronym for Electro-Motive-Force , that is a Force that Moves Electric Charge. It is not implied by the name of that term whether the origin of the Force is elecrostatic, magnetic , thermoelectric , or electrochemical.
Any substance or body that has excess electrons is negatively charged. 2. Any substance or body that has a deficiency of electrons is positively charged. The ability/potential of electrons to move based on polarity and electron deficiency has several names: emf or electromotive force.