Which of the following is true about wire-wound resistors?

Wire-wound resistors are typically crafted by winding a metal wire around a ceramic, plastic, or other insulating core and are known for their versatility and performance in various applications. When considering the mounting orientation, it's important to note that vertical mounting can help improve heat dissipation. This is particularly significant because wire-wound resistors can generate more heat than other types of resistors, such as carbon-composition. By mounting them vertically, any heat generated can rise more easily, preventing overheating and maintaining the resistor's integrity.

In contrast, if other mounting options are used, or if the resistor is placed in a confined space, heat may build up and lead to potential failure or decreased performance. This characteristic makes vertical mounting a recommendable choice for enhancing the thermal management of wire-wound resistors.