if current is basic si unit why it dependent on time

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if current is basic si unit why it dependent on time ..

Answer / zia ur rehman

In modern SI unit system the electric current is included in
the list of “basic” quantities. We, though, know that it is
equal to time rate of charge. A quantity of basic nature in
the universe is not derivable from other quantities, but
current is. As such, current is not basic in nature. We
could have included “charge” as the basic quantity instead.
But, then there are other requirements of a basic unit like
reproducibility and ease of measurement etc, which need to
be taken into consideration.

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if current is basic si unit why it dependent on time ..

Answer / akanimi

i=q/t. it doesnt mean that i depend on t. t=q/i. does that
mean that t is not a basic variable.

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