If I is the current flowing through conductor and V is the potential difference across its end, then Ohm's Law is expressed as:

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KVS TGT WET (Work Experience Teacher) Official Paper

Answer 1

The resistance of a wire is given by,

ρ = resistivity of material

l = length of wire

A = area of cross-section

Ohm's law states that:

V = IR

σ = 1/ρ

where, σ is the conductivity of the material.