State and derive the ohms law? 😁😁😁😁😁😁😁😁😁😁😁

Question

Arun · Answer

Ohm' s law :- the current flowing through a conductor is directly proportional to the potential difference across it ends.

where ,

V = pd.
R = resistance
I =elec. current

therefore ,
V = RI
R = V / I

V / I = constant

therefore ,
I = resistance

Khimraj · Answer

Statement: – Ohm’s law states that the current (I) flowing through a conductor is directly proportional to the potential difference (V) across the ends of the conductor,provided physical conditions of the conductors such as temperature,mechanical strain etc. Are kept constant i.e. IαV Or VαI or V= RI Or V/I=R=a constant Where R is known as resistance of the conductor . It depends upon the length ,shape and the nature of the material of the conductor. The variation between potential difference (V) and current (I) through a conductor is a straight line. Deduction of Ohm’s Law: As drift velocity is given by V d =eEt/m But Electric field across the conductor of length l is E=V/l Thus V d =e V/ml Also, I=Anev d By putting value of v d in the equation of I ,we get I=Ane(eV/ml)=(Ane 2 /ml)V Or V/I=ml/Ane 2 =R Where R is a constant for a given conductor. It is known as the resistance of the conductor. Thus V=RI This is Ohm’s law.

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State and derive the ohms law? 😁😁😁😁😁😁😁😁😁😁😁

State and derive the ohms law? 😁😁😁😁😁😁😁😁😁😁😁

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State and derive the ohms law? 😁😁😁😁😁😁😁😁😁😁😁

State and derive the ohms law? 😁😁😁😁😁😁😁😁😁😁😁

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