Generating electricity and current

If the current flows in only one direction it is called direct current, or DC

whereas If the current constantly changes direction it is called alternating current, or AC.

 

An electric current is produced when a magnet is moved into a coil of wire in a circuit.

We say that the electric current has been induced, and the process is called induction.

The direction of the induced current is reversed when the magnet is moved out of the coil again.

It can also be reversed if the other pole of the magnet is moved into the coil.

 

If the current flows in only one direction it is called direct current, or DC

whereas If the current constantly changes direction it is called alternating current, or AC.

 

 

Generators can be turned indirectly using fossil or nuclear fuels.

The heat from the fuel boils water to make steam, which expands and pushes against the blades of a turbine.

The spinning turbine then turns the generator.

 

If the current flows in only one direction it is called direct current, or DC

whereas If the current constantly changes direction it is called alternating current, or AC.

 

The energy produced by burning fuel is transferred as heat and stored in water as steam.

The energy in steam is transferred to movement in a turbine, then to electrical energy in the turbine.

Energy is lost to the environment at each stage.

 

If the current flows in only one direction it is called direct current, or DC

whereas If the current constantly changes direction it is called alternating current, or AC.