Electrical Circuit

Electrical lap coveringis a route whichelectronsfrom avoltageorcurrentsource flow. Electric currentflows in a closed path called an electric racing circuit. The point where those electrons enter an galvanic circuit is called the source of electrons. The point where the electrons leave an galvanic circuit is called the take or earth ground. The exit point is called the return be exertion electrons always end up at the source when they complete the path of an galvanizing circuit.The part of an galvanizing circuit that is between the electrons beginning point and the point where they return to the source is called an electrical circuits load. - Electrical-circuits Electrical circuits commonly use alter currentsources. The load of an electrical circuit may be as simple as the electrical appliances like refrigerators, televisions, or microwave ovens. But the loads for electrical circuits disregard also be quite complicated, such as the load upon the output of a hydroelectric p ower generating station. Electronic circuits Electroniccircuits usually use low voltagedirect currentsources. The load of an electronic circuit may be as simple as a fewresistors,capacitors, and a lamp, all connected together to pull in the flash in adigital camera. Or an electronic circuit can be complicated, connecting thousands of resistors, capacitors, andtransistorsto shape themicroprocessorsthat make computers possible. - Circuit-and-wiring-diagrams Electrical and electronic circuits can be complicated.Making a drawing of the connections to all the component part in the circuits load makes it easier to understand how circuit components are connected. Drawings for electronic circuits are called circuit diagrams. Drawings for electrical circuits are called wiring diagrams. Circuit diagrams and wiring diagrams are usually drawn by skilleddraftsmen, and then printed. But they can also be simple pencil sketches drawn bytechniciansor other workers. Wiring and circuit diagrams u se specialsymbolsrecognized by everyone who uses the drawings.The symbols on the drawings show how components like resistors, capacitors,inductors, motors, outlet boxes, lights, switches, and other electrical and electronic - Circuit- rapeers The current flowing in an electrical or electronic circuit can be suddenly increased when a component part fails. The increase in current can cause serious damage to other components in the circuit. Or the failure can create a ardour hazard. To protect the other components, or to prevent a fire hazard, a device called a circuit breaker can be wired into a circuit.The circuit breaker will open, or break, the circuit in which it is installed when the current in that circuit becomes too high. - changeGround-fault-interrupt-(GFI)-devices The standard return for electrical and electronic circuits is the earth ground. When an improperly designed electrical or electronic device fails, it may open the return circuit to the earth ground. The user of th e device could become a part of the devices electrical circuit by providing a return path for the electrons through the users body instead of the circuits earth ground.When the users body becomes part of an electrical circuit, the user can be seriouslyshocked, or even killed byelectrocution. To prevent the danger of electrical shock and the possibility of electrocution, ground fault interrupt devices detect open circuits to earth ground in attached electrical or electronic devices. When an open circuit to earth ground is detected, the GFI device directly opens the voltage source to the device. GFI devices are similar to circuit breakers, but are designed to protect earthly concern rather than circuit components.