Question

what is ohms law explain it briefly

Answer 1

Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that: The potential difference (voltage) across an ideal conductor is proportional to the current through it. The constant of proportionality is called the "resistance", R.

Answer 2

the voltage is directly proportional to the current
V=IR
where R is the proportionality constant and is known as resistance