How to learn basic electrical?
Who this course is for:
- Electrical Engineer students or fresh graduate Engineers
- Any one who has curious to learn about wiring that is found in houses and buildings
- If you are interested to know how to read electrical drawing for a building
Which is best book to clear basics of electrical?
You can learn the following from this book so easily:-
- Mathematical calculations to understand operation of circuits
- Concepts you need to understand to design electronic circuits
- Key components of electronics like Transistors,IC’s – get a really good understanding of them.
- Understand power supplies, oscillators, amplifiers,filtering and more
What are basic electrical principles?
- Voltage is the difference in charge between two points.
- Current is the rate at which charge is flowing.
- Resistance is a material's tendency to resist the flow of charge (current).
What are the basic electrical questions?
Electrical Practice Quiz. Answer the questions with the given choices. The entire questions are composed of basic and board exam type questions. Answer the questions sincerely with the time allotted. The main objective of the quiz is to let the examinees... The owner hired an electrician to prepare and install the electrical wiring for his house.
What is the difference between electronics and electrical?
Electronics is the processing of electrical charges as information. Nam June Paik, one of the pioneers of the field of electronic art, makes this distinction very clear by commenting on "electricity" and "electronics": "Electricity deals with mass and weight; electronics deals with information: one is muscle, the other is nerve." (from: Gene Youngblood: Expanded Cinema, New York: Dutton, 1970, p. 137.)
How does current work?
Current is the quantity of electrons passing a given point. The unit of current is the Ampere. One Ampere is 6,280,000,000,000,000,000 electrons passing a point in one second. Electrical current flows from a region of high charge or potential to a region of low potential. To make confusion worse there exist two notions about the direction in which current flows: Conventional Current assumes that current flows out of the positive terminal, through the circuit and into the negative terminal of the source. This was the convention chosen during the discovery of electricity. They were wrong! Electron Flow is what actually happens and electrons flow out of the negative terminal, through the circuit and into the positive terminal of the source. However, the concept of Conventional Current is still applied to almost all the circuit schematics today, so we will use it extensively in this class.
What is a transistor?
Transistors . A transistor can be used as a switch and signal amplifier. It is an electronic device with three contacts: the emitter (E), base (B) and collector (C). A very small current on the transistor's base can control a much larger current flowing through a passage between collector and emitter.
What is the simplest capacitor?
The simplest capacitor is two conductors separated by an insulating material called dielectric. The minus side of the capacitor is charged with electrons. These electrons in the charged capacitor will gradually leak through the dielectric until both conductor plates have an equal charge.
What is a diode?
diode is an electronic device that allows current to flow through it in one direction only. It is a one-way turnstile for electrons. There are many different classes of diodes for many different purposes:
What is electron flow?
Electron Flow is what actually happens and electrons flow out of the negative terminal, through the circuit and into the positive terminal of the source. However, the concept of Conventional Current is still applied to almost all the circuit schematics today, so we will use it extensively in this class.
What is breadboard prototyping?
Breadboards are useful solderless prototyping boards that allow you to test out circuits quickly. In general it is a good idea to build every circuit on a breadboard first before you even think about soldering the parts together. Thus, it is important to understand how a breadboard works.
What is the rate of work done in an electrical circuit?
In an electrical circuit, voltage applied to a conductor will cause electrons to flow. Voltage is the force and electron flow is the motion. The rate at which work is done is called power and is represented by the symbol “P”. Power is measured in watts and is represented by the symbol “W”. The watt is defined as the rate work is done in a circuit when 1 amp flows with 1 volt applied.
How many resistors are needed to form a series parallel circuit?
Series-parallel circuits are also known as compound circuits. At least three resistors are required to form a series-parallel circuit. The following illustrations show two ways a series-parallel combination could be found.
What are the elements that make up matter?
All matter is composed of molecules which are made up of a combination of atoms. Atoms have a nucleus with electrons orbiting around it. The nucleus is composed of protons and neutrons (not shown). Most atoms have an equal number of electrons and protons. Electrons have a negative charge (-). Protons have a positive charge (+). Neutrons are neutral. The negative charge of the electrons is balanced by the positive charge of the protons. Electrons are bound in their orbit by the attraction of the protons. These are referred to as bound electrons.
What is the relationship between current and voltage?
fundamental relationship exists between current, voltage, and resistance. A simple electric circuit consists of a voltage source , some type of load, and a conductor to allow electrons to flow between the voltage source and the load. In the following circuit a battery provides the voltage source, electrical wire is used for the conductor, and a light provides the resistance. An additional component has been added to this circuit, a switch. There must be a complete path for current to flow. If the switch is open, the path is incomplete and the light will not illuminate. Closing the switch completes the path, allowing electrons to leave the negative terminal and flow through the light to the positive terminal.
What is the difference between voltage and electricity?
This force comes from either a water pump or gravity. Voltage is the force that is applied to a conductor that causes electric current to flow.
How are elements identified?
Elements are often identified by the number of electrons in orbit around the nucleus of the atoms making up the element and by the number of protons in the nucleus . A hydrogen atom, for example, has only one electron and one proton. An aluminum atom (illustrated) has 13 electrons and 13 protons. An atom with an equal number of electrons and protons is said to be electrically neutral.
How does an electromagnetic field work?
An electromagnetic field is a magnetic field generated by current flow in a conductor. Whenever current flows a magnetic field exists around the conductor. Every electric current generates a magnetic field. A definite relationship exists between the direction of current flow and the direction of the magnetic field. The left-hand rule for conductors demonstrates this relationship. If a current-carrying conductor is grasped with the left hand with the thumb pointing in the direction of electron flow, the fingers will point in the direction of the magnetic lines of flux.