A current of 2A flows thorugh a wire of ...

A current of `2`A flows thorugh a wire of cross-sectioal area `25.0mm^2` .The number of free electrons in a cubic meter are `2.0times 10^(28)`.The drift velocity of the electrons is` _____times 10^(-6) ms^(-1)`(given,charge on electron =`1.6times 10^(-19)C)`.

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