All about Electrical Circuits

How Do Circuits Work?

                 Circuits work because of moving electrons (negatively charged part of atoms). In a cell (battery) the electrons are repelled away from the negative terminal, through the conducting path and the appliance and back to the cell. After going through the path the electrons are attracted to the positive terminal of the power source and ready to go again. 
                The electrons need a complete path or circuit to flow through so the electrons can go from the negative to the positive terminals of the power source. This flow of electrons is known as an electric current.
If there is a break in the circuit, the electrons can't get through to the appliance and there will be no electrical charge.

Parts of Circuits

All circuits have 3 main parts: a power source, a conducting path and a load (something that will use the electricity). In the labs we did in class we usually used a battery as a power source, a piece of copper wire as a conducting path and a light bulb as a load. To make a more complicated circuits, like the one in your home, you must use a switch. A switch allows you to control the flow of current in an electrical circuit. These allow you to control the power in your home. Think of a light switch.

My Learning on the subject

I learned from this subject are the 3 elements of Electric which are the
Power-p(t); Defined to be the charge rate of doing work, measured in volts(V), and its voltage mat be constant/varying.
Load; The circuit connected to the terminal and a power consumed by a circuit.
Conductor; is an object or a type of material that permits the flow of electrical current in one or more directions.

Also the Charge-q(t); Basic quantity in an electric circuit. Defined as an Electrical property of materials. Current-i(t); Defined as the charge flow rate, Measured in Ampere(A). Current may be constant/varying. Energy; Defined as the capacity to do work. Measured in joules(J).
Circuit Elements; An element is the basic building block of a circuit. Electric circuit is interconnecting of the elements.

And also the Types of Elements; Active elements-Capable of generating energy(i.e batteries, generators). Passive elements-Absorbs energy(i.e resistors,capacitors and inductors). Voltage and current sources-The most important active elements.