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Electromagnet Essay Topics & Paper Examples

Physics Solenoids

Bibliography [1] http://www.gcsescience.com/pme5.htm [2] http://www.s-cool.co.uk/a-level/physics/magnetic-fields/revise-it/effect-of-ferrous-cores-and-the-relationship-between-curre [3] http://www.bbc.co.uk/bitesize/ks3/science/energy_electricity_forces/magnets_electric_effects/revision/4/ [4] http://www.howmagnetswork.com/Electromagnetism.html [5] http://www.wisegeek.com/what-is-a-solenoid-door-lock.htm [6] http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/solenoid.html The shape of a magnetic field around a solenoid http://www.gcsescience.com/pme5.htm zzz How to strengthen a magnetic field around / in a solenoid http://www.s-cool.co.uk/a-level/physics/magnetic-fields/revise-it/effect-of-ferrous-cores-and-the-relationship-between-curre Electromagnets all consists of a current carrying conductor, however the strength of the magnetic field produced also depends on the surrounding substance. Air is not particularly good at ‘carrying’ a magnetic field and so the field around a wire is quite weak. By placing a core inside of a coil the strength of the magnetic field can be increased. By putting a ferrous (iron) core inside a solenoid, the field lines are concentrated. This has the effect of strengthening the field. Inside the core,…