Home »
Ask & Discuss
»
Physics
« Back to Discussion
Electricity
Comments (3)

How Electricity Is Made
It comes from magnets!
In the early 1800s, Michael Faraday discovered "electromagnetic induction", which is the scientific way of saying that if he moved a magnet through a loop of wire, the wire would become electrified.
In 1882, Thomas Edison opened the first full-scale power plant in New York City. Edison's electric generator was a bigger version of Faraday's basic experiment; a big magnet rotates around a wire to produce an electric current.
Today's power plants are bigger and controlled by computers, but the basic process is still the same as it was nearly 120 years ago.
Here's how power plants make electricity:
| | | | | |
| Coal is dug up and sent on trains and boats. | The coal is burned to heat water to make steam. | Inside the generator, the steam spins a big fan called a turbine. | The spinning turbine rotates a big magnetaround a piece of wire & that motion creates a magnetic field that electrifies the wire. | The electric current flows through the wire and is pushed out through high-voltage transformers. |
More ways to make electricity:
Instead of using coal, some power plants use other ways to make electricity:
| Emery Generating Station | Duane Arnold Nuclear Center |
Bent Tree Wind Farm | Prairie du Sac Hydro |
| Some power plants burn natural gas instead of coal to make steam. | A nuclear power plant splits apart uranium to release heat energy. | A wind farm uses the wind to spin the blades of the turbine. | A hydro power plant uses running or falling water to spin the turbine. |
Preparing for JEE?
Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015
@ INR 4,950/-

For Quick Info
Find Posts by Topics
Physics
TopicsMathematics
Chemistry
Biology
Institutes
Parents Corner
Board
Fun Zone
|
| 1. |
|
Bipin Dubey
|
| 2. |
|
Himanshu
|
| 3. |
|
Hari Shankar
|
| 4. |
|
edison
|
| 5. |
|
Sagar Saxena
|
| 6. |
|
Yagyadutt Mishr..
|
















