Question

explain ohm's law explaination with formula

Answer 1

according to the Ohm's law the ratio of the potential difference to the current is constant at a fixed temperature .this constant is known as a resistance .
$resistance = \frac{potential \: difference}{current} (at \: a \: fixed \: temperature) \\ r = \frac{v}{i}$

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Answer 2

The current flowing through of a conductor is directly proportional to the potential difference across its terminals

  V ∝ I

  V = I X {CONSTANT}

  V = I R