Bad ground from engine to airframe will let you know real quick. High resistance will show as slow starter speed. Broken/no ground strap will show as...
That's a standard NATO DC power plug. When wired correctly, there are large gauge positive and negative cables and a small gauge jumper to the small...
Imagine a simple circuit with a single light connected to a single battery. Electrons will flow out of one battery terminal, through the light bulb,...