Consider a conductor with a non-uniform cross-sectional area. If a steady current flows through it, which of the following quantities remains constant along the length of the conductor?

If the mobility of charge carriers in a material is $2 imes 10^{-3} \, m^2V^{-1}s^{-1}$ and they experience an electric field of $5 imes 10^2 \, V/m$, what is their drift velocity?

The direction of drift velocity of electrons in a metallic conductor is:

An electron drifts with a velocity of $2.5 imes 10^{-4} \, m/s$ in an electric field of $5 imes 10^{-10} \, V/m$. Calculate its mobility.

A potential difference of $V$ is applied at the ends of a copper wire of length $l$ and diameter $d$. On doubling only $d$, the drift velocity,

A copper wire of cross-sectional area $2.0\,\,m{m^2}$, resistivity $= 1.7\,\, imes \,\,{10^{ - 8}}\,\,{\rm{\Omega }}\,{\rm{m}}$, carries a current of $1\,A$. The electric field in the copper wire is

In above question, if length is doubled, the drift velocity

A charged particle having drift velocity of $7.5\,\,{\rm{ imes }}\,\,{\rm{1}}{{\rm{0}}^{ - 4}}\,{\rm{m}}\,{{\rm{s}}^{ - 1}}$ in an electric field of $3\,\,{\rm{ imes }}\,\,{\rm{1}}{{\rm{0}}^{ - 10}}\,\,{\rm{V}}{{\rm{m}}^{ - 1}}$, has a mobility in ${{\rm{m}}^2}\,{{\rm{V}}^{ - 1}}\,{{\rm{s}}^{ - 1}}$ of:

A proton experiences an electric field of $2 imes 10^{-6} \, V/m$ and attains a drift velocity of $5 imes 10^{-7} \, m/s$. What is the mobility of the proton?

Two identical conductors maintained at same temperatures are given potential differences in the ratio ${\rm{1 : 2}}$. Then the ratio of their drift velocities is

A potential difference $V$ is applied to a copper wire of length $l$ and thickness $d$. If $V$ is doubled, the drift velocity