Differentiate between resistance and resistivity.
Asked by somyap | 28th Apr, 2010, 06:31: AM
Electrical resistance is given by the formula
- 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.
Answered by | 28th Apr, 2010, 06:43: AM
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