Light, image and sound

How electricity is transformed into motion, light, image and sound

The power has several ways to actions prove.

1- In a motor current enters the motor coils and creates a rotating magnetic field which rotates the motor shaft.

2- In a lamp current flows through the coil-shaped filament which provides a high resistance to current flow, and this causes heat by the joule effect and the filament becomes red hot, which emits light.

3- In a computer, cell phone, digital camera or electricity is encoded into binary codes 0-1. And then these codes are arranged in groups and order representing the image.

4- In the same way that the image on a computer, the sounds are stored as binary codes, when reproducing music player and decode the codes represented by electrical impulses that are sent to the speaker, then this current travels horn coil is interacting with a magnet which causes spider vibrate the horn and this pushes the air in front.