Showing posts with label electricity. Show all posts
Showing posts with label electricity. Show all posts

11 Sept 2012

Electronic Cotton or Fabric Produce electricity



In the research of University of South Karolina's the researchers says about our fabric. One day our cotton T-shirts and jeans could have more functions they could work as a flexible energy storage device and charge our cell phones and i pad.Researchers have invented transistors made from cotton fibers, producing electronic cotton!
This is the basic invention in this technology that our fabric is being used as energy storage devices and performed a lot of amazing tasks like our fabric tell us the temperature of atmosphere.
the electric cotton could detect how fast we’re walking across carpet or how we’re affected by our environment (i.e. t-shirts that measure pollutants in the atmosphere). Their main goal is to create “a seamless interface between electronics and textiles.”
The cellulose that makes up cotton already provides natural installation, which makes the fiber conductive, making it the perfect fabric to create an electrical stream through. The researches have already been doing tests where they treat the cotton with a thin layer of conductive polymer (PEDOT). By adding the polymer the cotton becomes a thousand times more conductive than plain cotton, and keeps the mechanical properties untouched.
One of the first tests the researchers did was tie a knotted end of treated cotton to a battery and the other to a LED, and they created an electrical current. Unfortunately the electrons in the cotton fibers aren’t as strong as silicon circuits so we won’t be seeing MP3 clothing anytime soon. Nor will you ever have to worry about feeling the electric charge!

Why Birds not feel electric shock on wires ?

Birds on electric wires
Most of us see birds sit on the electrical wires and do not feel electric current the simple anwer of this question is this
Current is always flow from high potential to lower potential. When the positive and negative wire are in contact the current flow through it but in case of birds they are sit only in one wire for example if crow sit in wire they have no contact with the ground or neutral wire that’s why they can not complete the electric circuit to flow the current in it. You also see when they touch with the other wire they are die. The reason behind this is that the crow are now in contact with the negative and positive wire that’s why current will flow through it and they are die.

10 Sept 2012

Why we feel electric current under high voltage ?

This is the simple Question which all of us think when we are alone. Now I will tell you the basic reason of feeling electric current on our body.
Firstly you need to know about current and voltage these are totally different. We will define current as the number of charge (negative or positive) flow with respect to time like Q/t. here Q defines the Charge and t is time.
The voltage is the force which pushes the charge to flow. Like our home motor which force water to pull upward and fill our water tank.
After reading you have the rough idea about the relation of current and voltage. The relation between the current and the voltage is define the law called Ohms law which is define as
V=I/R
V= voltage
I = current
R= voltage
We know that our body is a good conductor of electricity because our body contains a lot of water and we know that water is a good conductor of electricity. So in this case our body becomes the resistance and if high voltage is applied to the electrons they will flow from our body and our body cells are damage. This is the basic reason that our body feels electric current under high voltage which is more than 80v to 100v. Below this you will not feel the electric shock. Current depend upon the voltage to flow.

 
Design by Free WordPress Themes | Bloggerized by Lasantha - Premium Blogger Themes | Bluehost Review