Why does resistivity decreases with more number of electrons for example nbsp-sodium nbsp-have nbsp-1 free electron and copper have 2 free electrons but resistivity of copper is more-

Number of free electrons in the copper is more than that of sodium. nbsp;At the same temperature copper provides more resistance than the sodium because large ...

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Standard X

Physics

Resistance

why does resi...

Question

why does resistivity decreases with more number of electrons for example sodium have 1 free electron and copper have 2 free electrons but resistivity of copper is more?

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Solution

Number of free electrons in the copper is more than that of sodium.
At the same temperature copper provides more resistance than the sodium because larger number of possible collisions happen between the electrons to transfer the energy inside the copper.

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why does resistivity decreases with more number of electrons for example sodium have 1 free electron and copper have 2 free electrons but resistivity of copper is more?

Number of free electrons in the copper is more than that of sodium. At the same temperature copper provides more resistance than the sodium because larger number of possible collisions happen between the electrons to transfer the energy inside the copper.

Number of free electrons in the copper is more than that of sodium.
At the same temperature copper provides more resistance than the sodium because larger number of possible collisions happen between the electrons to transfer the energy inside the copper.