tatemae.honne
Mind Map by , created more than 1 year ago

This mind map covers the main areas in the topic of electromagnetism. These include magnetic fields, magnetic flux density, alternating current electromagnetic induction, mutual induction and self-induction.

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alex.examtime9373
Created by alex.examtime9373 over 11 years ago
tatemae.honne
Copied by tatemae.honne over 11 years ago
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Electromagnetism

ElectromagnetismMagnetic FieldsRegion of space where magnetic forces can be feltMagnetic Field LinesIndicates the direction a 'magnetic north'would travel in a magnetic field if free to do soConnect the north and south pole of a magnetMagnetic Flux Density (B)Strength of the magneticfieldVectorquantityTeslaForces in a magnetic fieldForce on a current-carrying conductorin a magnetic fieldF = IlBF = forceI = currentl = lengthB = magnetic fluxdensityWhen the flow of current in the conductor isperpendicular to the magnetic fieldDirectionFleming's left hand ruleForce on a charged particle movingthrough a magnetic fieldF = qvBq = chargev = velocityB = magnetic fluxdensityForces between currentsDefinition of the Ampere is based on this principleElectromagneticInductionFaraday's LawMagnitude of the induced emf is proportional to the rate ofchange of magnetic flux linking a circuitMagnetic flux (Φ)Φ = BAB = magnetic flux densityA = areaVector quantityWeber (Wb)Lenz's LawDirection of the induced emf alwaysopposes the charge causing itMutual InductionTransformerSelf-inductionInductorDouble click this nodeto edit the textClick and drag this buttonto create a new node