Wikibooks: Engineering Handbook/ElectroMagnetic

• Format: Book
• Language: English
• Subjects: South Pole; North Pole; South pole
• Online Access: https://en.wikibooks.org/wiki/Engineering_Handbook/ElectroMagnetic

=Electric Magnet= Any current conducting conductor has Magnetic poles The north pole corresponds to positive polarity and the south pole corresponds to negative polarity A magnetic field consisting of field lines running from north pole to south pole =Magnetic Field= 1) For a straight line conductor connects to Positive voltage . The Magnetic Field consists of Circular Field Lines counter clockwise 2) For a straight line conductor connects to negative voltage . The Magnetic Field consists of Circular Field Lines clockwise 3) For a Coil constructed from straight wire with several turns . The Magnetic Field consists of elliptical Field Lines that has =Electromagnetism= For a Coil constructed from straight wire with several turns . Then Magnetic Field Strength B = L I Magnetic Flux on the turns \phi = N B Magnetic Force . F = B l Voltage Induced on the Coil . v = L \frac{dI}{dt} Voltage Induced on the Turns . epsilon = N \frac{d \phi}{dt} BookCat