Ohm's law , statement definition , formula , forms rule
what is Ohm’s law ? definition , formula , forms rule statement : famous german physicist georg simon ohm did several experiments and given a rule that is known as Ohm’s law .
Ohm’s law statement
he said that ” electric current which is flowing through a conductor is directly proportional to applied potential difference across the end of the conductor and inversely proportional to resistance of the conductor”
Let us suppose that I current is flowing through a conductor when V potential difference is applied to the ends of the conductor and the resistance of the conductor is R.
Then according to ohm’s law the relationship between I , V and R will be
I = V/R
other statements or forms of ohm’s law are given below too
” when the physical state like temperature , pressure etc. remains constant then the current which is flowing through a conductor will be direct proportional to the potential difference applied to the end of the conductor”
when the physical state eg. temp. keep unchanged then the ratio of current flowing through the current (I) the potential difference applied (V) to conductor terminals , will be constant.
V/I = R = constant
here is R is resistance of conductor , which is fix for any conductor when physical states are same.
General form of ohm’s law is written as
V = IR
note : ohm’s law is applied for bilateral circuits that is why we can not apply ohm law for transistor etc.
note : ohm law is applied for linear circuits that is the reason we do not use ohm law for electronics elements circuits which consisting thyrite etc.
so in easy words we can say that ohm’s law shows the relationship between current , voltage (potential difference) and the resistance for any conductor.
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