Fundamental Physics/Electromagnetism/Electromagnet

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Electromagnetic field and its Electromagnetic field intensity[edit]

Configuration Magnetic Field Magnetic field intensity
For a straight line conductor
Manoderecha.svg
circular magnetic field surrounds a point charge along the straight line
For a circular loop conductor
Magnetic field of wire loop.svg
circular magnetic field surrounds a point charge along the circular loop
For a coil of N circular loops conductor
Solenoid-1.png
lines of magnetic field runs from North pole (Positive polarity) to South pole (Negative polarity)