The wire that carries the current from the power source to the outlet or receptacle is the hot wire. Whenever you see a black wire, you know it is hot. There are other wires that carry current in more complicated circuits, but black are always hot.
Total Internal Reflection and the Critical Angle. If a ray of light is leaving a denser medium, it will bend away from the normal. As can be seen from the above diagram, as the angle of incidence inside the material increases the angle of refraction increases to a point at which it leaves the material at 90Ë.
Critical Reflection. Critical reflection is a reasoning process to make meaning of an experience. Critical reflection is descriptive, analytical, and critical, and can be articulated in a number of ways such as in written form, orally, or as an artistic expression. In short, this process adds depth and breadth to an experience and builds connections between course content and the experience.