Question

establish current voltage relationship (ohm's law) for a metallic conductor​

Answer 1

According to ohm's law current voltage relation is $v=iR$

Explanation:

Let the potential difference across the conductor is v and resistance of metallic conductor is R and i current is flowing across the conductor

According to ohm's law voltage across any conductor is proportional to current flowing through the conductor at constant temperature

So $v\propto\ i$

$v=iR$, here i is current flowing through conductor and R is resistance of the conductor

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