Question

what is ohm law? explain how it is used to define the unit of resistance?​

Answer 1

Answer:

according to the ohm's law the current flowing through a conductor is directly proportional to the potential difference applied across its end only when the physical condition like temperature and pressure remain constant. V = IR. { where R is proportionality constant} unit of R is ohm .

Explanation:

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Answer 2

Here is your answer user.

Ohm's law states that the electric current flowing through a metallic wire is directly proportional to potential difference across its ends provided physical conditions such as temperature remain the same .

Resistance of a conductor at a given temperature is defined as its property to resist any flow of electric current through its SI unit of resistance is ohm named after German physicist Ohm.

V=IR

R = V/I