| $A$. મોબિલિટી | $P$. $\frac{m}{ne^2 \rho}$ |
| $B$. વિદ્યુત વાહકતા | $Q$. $neAv_{d}$ |
| $C$. રિલેક્સેશન સમય | $R$. $\frac{v_{d}}{E}$ |
| $D$. વિદ્યુતપ્રવાહ | $S$. $\frac{J}{E}$ |
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