CBSE Class 10 Answered

Dear student,

Electrical resistance is given by the formula

where

ℓ is the length (in units of meters)

A is the cross sectional area (in units of m²), and

ρ is the resistivity (in units of Ω·m) of the material

So resistivity is a characteristic of every material while resistance is the opposition offered by that material when in an electrically conductive circuit.

I means the same thing. RESISTIVITY is a name applied to material conductivity . RESISTANCE is the material property

Hope this helps.

Team

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