Question

Derive the si unit of electrical resistivity

Answer 1

Answer:

Electrical resistivity of the material of a conductor is the resistance offered by the conductor of length 1 m and area of cross-section 1m2. Numerically it is equal to the resistance of a rod of that substance which is 1 metre and 1 square metre in cross-section. Current in the circuit is reduced to half.

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Answer 2

The s.i unit of electrical resistivity 8s ohm metre.