Edison’s light bulb
The American electrical engineer Edison invented the incandescent light bulb in 1879, which changed our everyday life.
A ray of light is reflected or refracted at the boundary of two mediums with different...
A dynamo converts mechanical energy into direct current.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was...
DC motors consist of a permanent magnet and a coil within the magnet, with electric...
Watch this video to find out whether tap water and table salt are able to conduct electricity.
Capacitors store electrical energy in the form of electric charge.
Electric current can be generated by rotating an armature loop in a magnetic field.
In alkaline batteries electric current is generated by electrochemical reactions