How can Ohm's law be used to define ohm?
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19
Ohm’s Law:
This law states that the ratio of potential difference between the ends of a conductor to the current flowing through the conductor is a constant. This constant is defined as Resistance of the conductor.ie,
V/I=R
Where R is a constant and known as resistance.The unit of resistance is "ohm".1 ohm is the resistance offered by a current of 1 ampere passing through a current carrying conductor when it 's potential difference is 1 volt
This law states that the ratio of potential difference between the ends of a conductor to the current flowing through the conductor is a constant. This constant is defined as Resistance of the conductor.ie,
V/I=R
Where R is a constant and known as resistance.The unit of resistance is "ohm".1 ohm is the resistance offered by a current of 1 ampere passing through a current carrying conductor when it 's potential difference is 1 volt
pranitkumar:
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Answered by
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ohm is the unit of resistance . when we take one conducting metal and don't change its physically like ( size, metal,lenght, and cross section area ) then potential difference (v) is directly proportional to current (I)
where if we realise proportional sign then we use a constant resistant( R ) so
the formula comes
V=R ×I
R=V/ I
put the unit of potential difference and current
R= volt/ ampere = ohm
where if we realise proportional sign then we use a constant resistant( R ) so
the formula comes
V=R ×I
R=V/ I
put the unit of potential difference and current
R= volt/ ampere = ohm
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