What is component 8 in figure T-2?

In many circuit diagrams, components are represented by standardized symbols to indicate their functions. A light-emitting diode (LED) is typically represented by a symbol that resembles a diode with arrows indicating light emission. This visual representation makes it easy to identify LEDs among other circuit components.

If the question refers to a specific figure (T-2), and the answer indicates that component 8 is a light-emitting diode, this conclusion is likely drawn from recognizing the symbol for an LED in the provided diagram. LEDs are semiconductor devices that emit light when an electrical current passes through them, and they are commonly used for indicators or displays in various electronic devices. Understanding how to read circuit diagrams and recognize symbols is crucial for identifying components and their functions within a circuit.

Components like resistors, inductors, and regulator ICs have distinct symbols as well, but if the notable features of component 8 in the diagram include light emission, it confirms that this component is indeed an LED.