Fleming left hand rule Watch

Jimmy20002012
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When you use Flemings left hand rule to cl cults the direction of motion of an electron why is it that it would act in the opposite direction that to a positive charged particle?


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awkwardshortguy
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(Original post by Jimmy20002012)
When you use Flemings left hand rule to cl cults the direction of motion of an electron why is it that it would act in the opposite direction that to a positive charged particle?


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Don't know what cl cults means but an electron and a positively charged particle have opposite charge so the force on the particle is in an opposite direction, a bit like the force on a positively charged particle in an electric field is equal and opposite to than of a negatively charged particle with charge of equal magnitude in the same field. Fleming's left hand rule shows the direction for a positive test charge, therefore for a negative test charge you must point your current/flow of charge finger in the opposite direction, which happens to make your thumb for thrust/force point in the opposite direction also.

Something else you may want to know is conventional current flow is in the opposite direction to the way the electrons go, so if you know the direction an electron is moving in, then your second finger should point the opposite way to that direction, because your seCond finger is Conventional Current.
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