Fundamental Physics/Electricity/Electromagnetism/Electromagnetic field

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Electromagnetic field[edit | edit source]

Experiment has shown that non zero current flows inside conductor generates magnetic field around conductor

Straight line conductor Manoderecha.svg Magnetic field is made of circular loops around straight line conductor
Circular loop conductor Magnetic field of wire loop.svg Magnetic field is made of circular loops around a point charge on the circle
Coil of N circular loops Solenoid-1.png Magnetic field is made of eleptic loops run from north pole to south pole

Electromagnetic field's strength[edit | edit source]

The strength of magnetic field can be calculated by Ampere's law as follow

Straight line conductor Manoderecha.svg
Circular loop conductor Magnetic field of wire loop.svg
Coil of N circular loops Solenoid-1.png