transformers?

Question

what is the mean of transformers ?
my question is about the inductor !
this is my college engineering assignment question hope some body can help me ....
thank you

Answer 1

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.

A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.

Since the invention of the first constant potential transformer in 1885, transformers have become essential for the AC transmission, distribution, and utilization of electrical energy.A wide range of transformer designs is encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.

Answer 2

Transformer is an electrical device, used to transform electrical energy from one circuit to another, by means of electromagnetic inductance. Furthermore, it is a kind of inductor with two or more windings. Through the mutual inductance, current in one winding called a primary will induce current into the other windings called secondaries.

Answer 3

Transformers are devices used to either step-up or step-down the voltage.They have primary and secondary windings.

These two windings(inductors ),they determine whether it's a step-up or step-down transformer.when the number of turns in the primary is less when compared to the secondary then it is called step-down transformer n vice-versa for step-up.

To be precise, when the number of turns increases the magnetic lines of force cut by the coil increases(This is accroding to faraday's law of electromagnetic induction),hence the output from the coil is directly proportional to the number of windings.

To have more insight into these transformers:refer electrical engineering books by B.L Theraja.

All the best..

Answer 4

A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage. You'll see transformers at the top of utility poles and even changing the voltage in a toy train set.
https://www.electrikals.com/products/r/transformers?cid=695&page=1&pagesize=15

Answer 5

Well, a transformer is used to convert high voltage and low current on one side to low voltage and high current on the other, and vice-versa

Answer 6

transformers and inductors are two different critters. This is about all the help I can give.

http://en.wikipedia.org/wiki/Transformer
http://en.wikipedia.org/wiki/Inductor