Electricity can be elusive to people as it is an invisible power source unlike pipes and tubing filled with air, fuel, hydraulic oil or water. But the pilot will need some understanding of electrical systems to be able to work with possible failures should they happen in flight. A flat or 'dead' battery can happen at anytime to anyone but should not become a serious issue.
Antennas are connected by special electrical cable to the radio's so we will take a look at this important link. Nowadays we see more and more LED lights installed or as an option in general aviation airplanes, and there is also a lot of interest by the homebuilt community to install these modern and efficient lights too in their project.
This section goes back to the basic electrons, conductors and explaining what volts and amps are. Also, having a good ground connection in your aircraft will prevent interference from other electrical devices. Normal operation is discussed as are failures which do happen every now and then.
Electrical power is usually generated by specific devices like alternators and generators driven by the engine but if its not needed right away it must be stored in chemical batteries for later use to start the engine(s) or run the radio's.
Lights & Recognition
In aid of recognizing aircraft during reduced visibilities and at night it must be illuminated according standards set forth by the aviation authorities. Ordinary light bulbs were used in the past but LED light are becoming more and more commonplace.