Question

define ohms law????....

Answer 1

when the physical condition are kept constant then the electric potential at the end of conductor is directly proportional to the length and cross section area
R=rho l/a
where rho is a property of the of conductor and also known as special resistivity

Answer 2

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Class 10 Physics



Electricity

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Ohm's Law

Ohm’s Law states that the potential difference between two points is directly proportional to the electric current.

This means; potential difference V varies as electric current.

Or, V∝IV∝I

Or, VI=RVI=R-----------(1)

Or, 1I=RV1I=RV

Or, I=VRI=VR----------(2)

Or, V=RIV=RI ----------(3)

Where R is constant for the given conductor at a given temperature and called resistance. Resistance is the property of conductor which resists the flow of electric current through it.