Practicing Success
Practicing Success
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If the mass of the charge carriers increases by a factor of two, how will the conductivity of the material be affected? |
It will double It will be halved It will remain the same It will quadruple |
It will be halved |
Resistivity : ρ = \(\frac{m}{ne^{2}t}\) Conductivity $\sigma = \frac{n e^2 t}{m}$ $\Rightarrow \sigma \propto \frac{1}{m}$ m : mass n : number density e : charge on electron t : relaxation time |
