Such abstract concepts can be explained using analogies which use familiar words or ideas to represent the ideas which need to be conveyed. Analogies are selected which students should already be familiar with. However, no single analogy can represent all features of an electrical circuit and there are important differences between the analogies used and circuits. Instead appropriate analogies should be chosen to teach selected concepts and students should be prompted to compare analogies with circuits and identify how they differ.
Usually low voltages or DC(Direct Current) is used by the electronic circuits, because load does not need very high power and just a few capacitors, resistors, I.C or other components will not require much power to perform their jobs and it will be powered by a 18650 lithium battery or any other battery source with required voltage and current.
The part of an electrical circuit that is between the electrons starting point and the point where they return to the source is called an electrical circuits "load".
The current flowing in an electrical or electronic circuit can suddenly increase when a component part fails. This can cause serious damage to other components in the circuit, or create a fire hazard. To protect against this, a fuse or a device called a "circuit breaker" can be wired into a circuit.