Final answer:
The electrical system in an airplane provides power for all onboard electronics and lighting, including avionics, communication systems, navigation systems, and lighting.
Step-by-step explanation:
The electrical system in an airplane provides power for all onboard electronics and lighting. This includes the cockpit instruments, communication systems, navigation systems, lighting, and other equipment that rely on electrical power.
For example, the electrical system powers the avionics, such as the radio, transponder, and navigation systems, which are essential for communication and navigation during the flight.
Furthermore, the electrical system also powers the aircraft's lighting, including the navigation lights, strobe lights, and cabin lights, ensuring visibility and enhancing safety during both day and night operations.