What type of symbol is typically used for a diode in TPC schematics?

In TPC schematics, the standard representation for a diode is a triangle pointing towards a line. This symbol effectively conveys the directional property of the diode, which allows current to flow in one direction while blocking it in the opposite direction. The triangle symbolizes the anode (the positive side) of the diode, and the line represents the cathode (the negative side). This design is universally recognized among electronic diagrams, making it easy for those familiar with schematics to identify the function of the diode at a glance.

The other choices represent different electronic components or symbols. For instance, the square with a dot typically signifies a connection or a junction point, while the circle with arrows usually indicates a component like a capacitor or an inductor, depending on the context. The zigzag line is often used to represent resistors. Each symbol serves a specific purpose in schematic representation, but only the triangle and line configuration accurately portrays a diode.