In Electric circuit the End point is always called return because the electrons travel back to the source it came from.
We frequently use analogies to teach about electricity and electric circuits and have found them to provide an evocative method to bring this topic to life. The topic of electricity has the added difficulty of having specialised and often unfamiliar vocabulary which students have to learn; use of analogies helps students learn these new words.
To prevent the danger of electrical shock and the possibility of electrocution, ground fault interrupts devices detect open circuits to earth ground in attached electrical or electronic devices.
circuit diagrams utilise special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, insulators, motors, outlet boxes, lights, switches, and other electrical and electronic components are connected together.