Final answer:
A flexible connector may not be used to connect a portable appliance if it requires a direct and secure electrical connection, especially for high-powered devices or those that need uninterrupted flow of electricity.
Step-by-step explanation:
A flexible connector may not be used to connect a portable appliance if it requires the transmission of electricity. Flexible connectors, like rubber and plastic cables, are used in power adapters to conduct electricity from the wall socket to a laptop computer, as shown in Figure 18.11. However, in situations where the appliance needs a direct and secure electrical connection, such as a high-powered device or one that requires consistent and uninterrupted flow of electricity, a flexible connector may not be appropriate.
For example, if we consider a high-powered kitchen appliance like an electric stove or a large refrigerator, these devices require a direct and secure electrical connection to avoid any risk of overheating or electrical issues. In such cases, rigid and fixed electrical connections are typically used instead of flexible connectors. Similarly, in industrial settings, heavy machinery and equipment that require a continuous power supply also use fixed electrical connections for stability and safety reasons.
In summary, a flexible connector may not be suitable for connecting a portable appliance if it requires a direct and secure electrical connection, especially for high-powered devices or those that need uninterrupted flow of electricity.