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??? ??? ?? ?????? ?? ???? ????.
????????????? ????
?????? ????	???????? SI
???????? ??	Electrical resistance
????	Ω
???????? ????	???? ???
Derivation	Ω = V/A
?????????? ????
? Ω ?? ...	... ??????? ?? ...
SI base unit s	kg ? m 2 ? s ?3 ? A ?2

??? (?? ???????? : Ohm ) ???????? ?? ?????? Electrical Resistance ?? ?????? ??? ??? ?? ?? ???? ????????? ????? ???????? ???? ????? ??? ??? ?????. ^{[?] [?]}

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??? ??? ?? resistance ????? ??? ??? ?? ??? ????? ???????? ????? ?? ???????? ???????????? ???? ? ?? ????? ???????? ??? ???? ????? ??? ??? ???? ????? ??? ? ??? ???????? ??????????? ???????? ???????? ??? ?????? ????? ????. ??? ????? ????? ??? ???????????? ????????? ???. ^[?]

${\displaystyle \Omega ={\dfrac {\mbox{V}}{\mbox{A}}}={\dfrac {{\mbox{m}}^{2}\cdot {\mbox{kg}}}{{\mbox{s}}\cdot {\mbox{C}}^{2}}}={\dfrac {\mbox{J}}{{\mbox{s}}\cdot {\mbox{A}}^{2}}}={\dfrac {{\mbox{kg}}\cdot {\mbox{m}}^{2}}{{\mbox{s}}^{3}\cdot {\mbox{A}}^{2}}}={\dfrac {{\mbox{J}}\cdot {\mbox{s}}}{{\mbox{C}}^{2}}}}$

??????? ??? ? resistance ?? ???? ??????? ?? ????? ??? ? ???? :

${\displaystyle P=V\cdot I={\frac {V^{2}}{R}}=I^{2}\cdot R}$

?????????? [ ???????? ]

• ???????? ?????

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