Understand the fundamental workings of electrical systems. Gain a fundamental understanding of electronics and get a good base understanding of electrical systems with this electronics course.
There are 8 lessons in this course:
Nature and Scope of Electronics: Linear, Analogue and Digital
Passive components -resistors capacitors, inductors
Other Components -Diodes, Transistors, witches etc
Input and Output devices
Applications - Working with Electronics
Each lesson culminates in an assignment which is submitted to the school, marked by the school's tutors and returned to you with any relevant suggestions, comments, and if necessary, extra reading.
Explain the nature and scope of electricity, electric currents and applications for electric power.
Explain how electricity is measured
Identify and explain the function of important electrical components including resistors, capacitors and inductors.
Interpret circuit diagrams
Identify and explain the function of other components commonly found in electronic devices, including switches, diodes, semi conductors, integrated circuits and semi conductors.
Explain how electric devices engage with a user, both through input and output components
Explain digital electronics and how it differs to analogue electronics
Explain the operation, maintenance and repair of a range of electronic devices
Analyse the electronic components of a chosen device, determine how it’s electronic circuits function, then suggest any maintenance, repairs or other work that may be carried out with that device to sustain or improve it’s use
Electronics is a study of how electricity is used. This covers so many different applications from running computers and cars to household appliances and robots. You obviously cannot learn all about all of these devices in one short course; but your study in this course will provide a foundation which will enable you to better observe and understand the workings of all things that electricity powers in the world around you.
Alone this course helps you make better decisions about the electric devices you use, how to maintain and repair them, and more beyond that. More specifically, this course can lay a foundation for further learning, formally or through experience.
You will learn about electric circuits, and how to understand them in a wide range of contexts; and that can be knowledge to underpin working with computers,
Electricity flows through a conductor by electrical pressure exerted from a source of electricity. The source might be either a battery, an alternator driven by an engine, a generator or a power point (indirectly a source from a power station).
Current only flows though if there is an unbroken circuit of conductors, allowing electricity to flow from the source, through the conductors and then back to the source. Any break in the circuit (e.g. a switch) will stop the flow of electricity. In any circuit, there will be a certain amount of resistance to the flow. Increasing the resistance will decrease the flow.
Conductors are materials which transmit electricity. Some conductors transmit electricity better than others. Copper and silver are some of the best conductors available e.g. metals, carbon and water (if it contains some impurity: pure water is not a good conductor).
INSULATORS OR NON CONDUCTORS
Insulators do not transmit electricity; and can be used to insulate against electricity e.g. plastic, rubber, wood, glass.
Fuses are used to protect the circuit and the operator.
Electrical circuits can become overloaded by fitting too many appliances, using multiple adapters, or using faulty appliances. This can cause too much current to flow causing over-heating or even a fire. To prevent this from happening fuses are inserted into the circuit to limit the amount of current that can flow. When the current rate for a particular fuse is exceeded as a result of over-loading, the fuse wire melts. This breaks the circuit and stops electricity from flowing.