A current of 1A flows through 0 24 m in length and area 1mm^2 when it is connected to a - Physics - Current Electricity

Question

A current of 1A flows through 0 24 m in length and area 1mm^2 when
it is connected to a batter of 3V Find the density of free
electrons in the wire if the electron mobility is 4 8x10^-6 m^2/V/s

Akansha Tyagi · Accepted Answer

MobilityMobility,μ=vdE (vd=iNAe)Density of free
electron,N=iμAeEN=11×10-6×1
6×10-19×3=2×1024

A current of 1A flows through 0.24 m in length and area 1mm^2 when it is connected to a batter of 3V. Find the density of free electrons in the wire if the electron mobility is 4.8x10^-6 m^2/V/s.