# hussainbalti40 Archive

## What is Sag and tension?

What is Sag and tension ?In a overhead transmission line conductor are supported at the towers or at the pole for low voltage transmission lines. The conductor are pulled and string effected. When the conductor are supported in this manner ,it will sag or ...Read More

## ELECTRIC POLARIZATION

What is electric polarization?When insulating material with relative permittivity (or dielectric constant) Eo is inserted into an initially charged parallel plates of a capacitor. Then negative charges appear on the left face and positive charges on the right face of the dielectric  The phenomenon ...Read More

## Capacitor:Capacitance ,symbol

A device which is used for storing electric charges is called capacitor. It consists of two parallel metal plates, separated by small distance. The medium between the two plates is air or a sheet of some insulator. This medium is known as dielectric. When ...Read More

## What is Fuse?Important terms

What is fuse?It is a piece of metal which is inserted in the circuit in series and it will melt when excessive current flows through it and thus breaks the circuit. The fuse clement is generally made of materials having low melting point, high ...Read More

## Electric Field and its intensity

An electric field is defined as any region around a charge in which an electric test charge would experience an electric force. The concept of field theory was introduced by Michael Faraday. He stated that the charge q produces an electric field in the ...Read More

## Thermocouple;Working

In early 1821, Thomas Seebeck searched experimentally for a relation between electricity and heat. He joined two wires of two dissimilar metals to form a circuit. He discovered that if one junction is heated to a high temperature, and the other junction remained at ...Read More

## Potentiometer:Working ,Application?

A potentiometer is a null type resistance network device for measuring potential differences.For the accurate measurement of potential difference, current and resistance the potentiometer is one of the most useful instruments. Its principle of action is that an unknown emf or P.D. is measured ...Read More

## What is Ferranti effect?

In a medium or long transmission line when open-circuited or lightly loadedÂ  the receiving end voltage is found more than the sending end voltage this phenomenon of rise in voltage at the receiving end of the open circuit or lightly load line is called ...Read More

## What is an insulator?

What is an insulator? It is a material which cannot conduct electrical current. It have high resistivity and low conductivity. Atom of the ins have tightly bound electron and therefore cannot move throughout of material. Due to the electrons are static and not freely ...Read More

## What is Proximity effect?

What is proximity effect?Proximity effect and therefore the current distribution in a conductor is also affected by the presence of other conductor its vicinity this effect is known as the proximity effect During considering the skin effect it was assume that there is no ...Read More