Physics Catalog

A Project By : Deja Holland and Danny Pichette

Michael Faraday

Michael Faraday

Michael Faraday was a Britosh physicist and chemist, best known for his discoveries of electromagnetic induction and the laws of electrolysis.

What He Discovered

In 1831 Faraday discovered electromagnetic induction and in the same year demonstrated the induction of one electric current by another. Faraday demonstrated this by conducting an experiment by taking a straight wire carrying current and brought a magnet near it holding it perpendicular to the direction of the current. The wire got deflected in a direction of the axis of the magnet.

Other Discoveries

Disk Generator

In 1831 Faraday invented the disk generator, the copper disk rotated between the poles of a magnet and the motion induced a radical flow of current in the disk.


In Faraday's early years of scientific work he spent researching in the field of chemistry. Through this research he discovered a hydrocarbon that is now known as benzene in 1825, from an oily film that deposited from the gas used for lighting. Faraday did some experiments, and discovered that the new compound had equal numbers of carbons and hydrogens, and so he named it "carbureted hydrogen".

"Nothing is too wonderful to be true if it be consistent with the laws of nature." - Michael Faraday

To Summarize

Michael Faraday spent his career first studying in the field of chemistry and then electricity. Throughout his career he made many breakthroughs including the discovery of electromagnetic induction, benzene, two new chlorides of carbon, and much more.

Electromagnetic Induction

How it works

Electromagnetic induction occurs when a circuit with an alternating current flowing through it generates current in another circuit simply by being placed nearby. An alternating current is the kind of electricity flowing through power lines and home wiring, as opposed to a direct current, which we get from batteries.


Magnetic Field

A magnet compass becomes useless in the presence of an interfering magnetic field.

Electric Field

Electrically charged particles are surrounded by an electric field.


Electromagnetic waves can travel through objects.

Electric Force

The electric force between two objects depends on the distance.

Magnetic Force

Magnetic Force is force due to interaction.


Motors change electric energy into mechanical energy.


When a magnet movs through a conducting coil it uses induction to produce a voltage across the coil that can caus elctric current to flow.


Electromagntism is associated with the behavior and interaction of electric charges and electric and magnetic fields.


Generators convert mechanical energy into electricity to serve as a power source for other machines.

Inventions Using Electromagnetism

First Commercial Magnet

The first commercial magnet was invented by Gowen Knight. They produced and sold to scientific investigators and terrestrial navigators.

Mechanical Computer

The mechanical computer was invented by British mathematician Charles Babbage, and the models he designed served as models for the later electronic computers

Electric Current

Italian scientist Luigi Galvani discovered in 1791 that tissues generate electicity through current.

DC Motor

In 1871 Zenobe Theophile Gramme introduced his motor, which was said to be the first electric motor of commercial significance.


Alexander Graham Bell invented the telephone in 1876

Heaviside Layer

Oliver Heavisisde realized that information travels along a cable as a wave in the space between the conductors rather than through the conductors themselves

Arc Lights

In 1860 Sir Humpherey Davey used arc lights for the practical use of lighting streets and theaters.