Final answer:
In foggy conditions, drivers should slow down and use fog lights to increase visibility. Fog lights emit a special beam to cut through fog more effectively than regular headlights. It's also important to maintain a vehicle's electrical system to ensure proper lighting function.
Step-by-step explanation:
Always slow down when driving in fog. Headlights should be kept on low beam and fog lights should be turned on if the vehicle has them. Fog lights are specially designed to cut through the fog and provide better visibility compared to regular headlights. When you observe headlights on your car, you'll notice that the design incorporates mirrors to form a directional beam. This beam is very bright, and looking at it directly can be harmful to your eyes, similar to staring at any intense light source. The effective use of lights improves visibility and contributes to safer driving conditions in adverse weather such as fog.
When considering vehicle lighting systems, it's important to note that lights may appear dimmer when other electrical systems are activated, for example, when the refrigerator motor comes on or when starting the engine of your car due to increased electrical resistance. Therefore, it's vital to ensure that your vehicle's electrical system is functioning properly, especially when relying on headlights and fog lights for increased visibility.