WEBVTT

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Today, we will discuss about
conventional and electron current flow

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Consider a dry cell as shown here. This cell
has one positive and one negative terminal

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The difference of potential between
these two terminals is measured in volt

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And this difference is due to an excess of
electrons at the negative terminal compared

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to the positive terminal. If we connect a wire across these
two terminals, the potential difference causes an electric

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current to flow in the circuit. This current is nothing but a
flow of electrons that come out from negative terminal, move

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along the wire, and enter the cell by the positive terminal. However,
before invention of this electron theory of current flow, the scientists of

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the 17th century, arbitrarily decided that,
the electric current, flows from positive

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potential to negative potential. This is
so called, conventional flow of current

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Till today, this is accepted, as direction of
electric current flow. Hope, you understand

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Thank you