Which of the following statements is true? Which of the following statements is true? Drift velocity is a property of the material. Conventional current flow describes electrons moving opposite the internal electric field of a conductor. The time between collisions when discussing electron current is the same for each collision because the atoms are equally spaced. Resistivity is determined by the geometry of the device.

The true statement is -  

Conventional current flow describes that the electrons moving in the opposite direction in the internal electric field of a conductor.

Explanation:

Current is a flow of electrical charges with respect to time from relatively positive to relatively negative direction, which is also known as Conventional current or Franklin current. There are positive charges and negative charges. Electrons have the tendency to be attracted by the positive attractors. The electron particles flows towards the positive direction within the wires.  So, electrons flow from negative to positive. The direction of the flow of conventional current is relatively positive end to a relatively negative end.

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the  pharynx, the  larynx, enters the  trachea, moves through the  bronchi  andbronchioles  till the alveoli.