Electric Circuits, Electron Sources And Destinations

Electric Circuits, Electron Sources And Destinations

You might have been wondering how electrons can continuously flow in a uniform direction through wires without the benefit of these hypothetical electron Sources and Destinations. In order for the Source and Destination scheme to work, both would have to have an infinite capacity for electrons in order to sustain a continuous flow! Using the […]

What is Conductors, Insulators and Electron Flow

What is Conductors, Insulators and Electron Flow Path

The electrons of different types of atoms have different degrees of freedom to move around. With some types of materials, such as metals, the outermost electrons in the atoms are so loosely bound that they chaotically move in the space between the atoms of that material by nothing more than the influence of room-temperature heat […]

What Is Static Electricity and Electricity Phenomenon

What Is Static Electricity and Electricity Phenomenon

It was discovered centuries ago that certain types of materials would mysteriously attract one another after being rubbed together. For example: after rubbing a piece of silk against a piece of glass, the silk and glass would tend to stick together. Indeed, there was an attractive force that could be demonstrated even when the two […]

Volt - Standard Unit Of Electromotive Force (EMF) / Potential Difference

Volt – Standard Unit Of Electromotive Force (EMF) / Potential Difference

The standard unit of electromotive force (EMF) or potential difference. An accumulation of static electric charge such as an excess or shortage of electrons is always, associated with a voltage. There are other situations in which voltages exist. Voltage is generated at a power plant and produced in an electrochemical reaction, and caused by light […]

periodic waveform

What is AC Waveforms?

Alternating current, (AC) is current that changes direction cyclically, passing first in one direction then in the other through a circuit. Such alternating currents are produced by generators and other such voltage sources whose polarities alternate between a positive direction and a negative direction rather than being fixed in a constant direction as with DC […]

What is Conventional Current and Electron Current ?

In this circuit the arrow indicates the direction of current flow. If the arrow points in the same direction of the positive charge carriers (conventional current flow) the numeric vale of the current receives a positive sign, +2A. If current flow is opposite (electron flow), the numerical value receives a minus sign, -2A. The sign […]

voltage polarity

What is Voltage Polarity?

If point ‘a’ is positive with respect to point ‘b’ moving a positive charge around the closed circuit from ‘a’ to ‘b’ or negative charge from b to a requires work. The difference between the two points is the voltage polarity. This voltage polarity is indicated by a positive sign ( + ) at point […]

What is AC/DC Voltage?

A constant voltage is called DC voltage. Voltage that varies sinusoidally with time is called AC voltage. A voltage source such as a battery or solar cell provides a constant DC voltage for example 12 VDC. A voltage source such as an alternator or generator provides an alternating AC voltage, so for example 240 VAC.

What is Potential Difference?

When two positive charges or two negative charges are got near to each other they repel each other while the positive and negative charge are attracted to each other. Then the charged particle has the ability to do work. The ability of a charged particle to do work is called an Electric Potential. “The potential […]

What is Electric Current?

Electric current is the flow of the electric charge in the form of free electrons. The current is measured by the number of free electrons passing the particular point within the circuit per second. Therefore the flow of charge per unit second describe the amount of electric current. When the charge moves at the rate […]

What is Unit Of Charge

The unit of charge is the Coulomb, C. The symbol of electric charge is Q. The charge of one electron is given as: 1.6×10-19, so one Coulomb of charge is equal to 1/ 1.6×10-19 or 6.25×1018 electrons. thus:- Q = 1 Coulomb = charge of 6.25 x 1018 Electrons

Electrical Safety Precaution

Electrical safety Precaution is very important for electric equipment as well as for operator. If the information on electrical safety is not observed either at all to the extent necessary, electric shock, fire and serious personal injury or death may occur. Prior to switching on the product, always ensure that the nominal voltage setting on […]

Tips To Reducing Static Electricity | Electrostatic Charge

Tips To Reducing Static Electricity | Electrostatic Discharge

You can bet that most of the electronic projects you want to build contain at least some components that are susceptible to damage from electrostatic discharge. You can take a number of simple steps to prevent exposing your projects to the dangers of electrostatic discharge: Use An Anti-Static Mat An anti-static mat acts to reduce […]

How Electricity Becomes Electronics

How Electricity Becomes Electronics

When you need to use electricity to make something work such as a boom box, you’ve entered the world of electronic gadgets. No doubt you’re eager to start making your own electronic gadgets. We cover the basics of how electronics and gadgets interact in the following sections. Creating A Simple Circuit Take a battery a […]

What is Grounding? – Ground Your Tools

It is critical for facilities to have grounded electrical systems, so that in the event of a lightning strike or utility the over voltage, current will find a safe path to earth. To ensure a reliable connection to the earth, the International Electrical Testing Association specifies the ground electrode testing every three years. The tools […]

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