An N-type semiconductor has hall coefficient 4.16⨉ 10-4 m³/C. The conductivity is 10 -8 S /m. Calculate its charge carrier density ne and electron mobility at room temperature.

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions