Final answer:
Using extension cords for lamps or televisions in proximity to power outlets is generally safe. However, high-current appliances like refrigerators and microwaves should not be run on extension cords due to the risk of significant voltage drop hampering their operation.
Step-by-step explanation:
In which of the following situations can a flexible or extension cord be used? The answer lies in understanding the electrical requirements of each device and how voltage drop can affect appliance operation. Let's break it down:
- A. Connecting a lamp to a power outlet that is far away: This is acceptable, a lamp typically has a low current demand, so the voltage drop across an extension cord is less likely to hinder its operation.
- B. Powering a refrigerator in the kitchen: This is generally discouraged. A refrigerator is a high-current device and using an extension cord can result in a significant voltage drop, thus hampering its performance.
- C. Connecting a television to a power outlet that is close by: Using an extension cord here is relatively safe, given the proximity to the power outlet minimizes voltage drop.
- D. Operating a microwave oven on the countertop: This is not recommended. A microwave, like a refrigerator, is a high-current device. Use of an extension cord can result in significant voltage drop, impacting its ability to work properly.
Learn more about Extension Cord Usage