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Jul 08 2012

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Flow of electrons and direction of current

We say current flow opposite to electron flow but what is current?

Sid asked

Answer:

Electric current is defined as the rate of flow of charges, ie; the amount of charges flowing in 1 sec.

The direction of current was conventionally defined as the direction of flow of positive charges.
In a metallic conductor, the negatively charged particles (electrons) are moving and therefore the direction of current is taken as opposite to the direction of flow of electrons.
Hope the concept is clear.

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