# Aims

The Hall Effect is an important part of finding out about charge transport in a material.In this experiment, we aim to determine the charge density in Ge n-type, Ge p-type semiconductor samples, and in a Ag (silver) sample. We will also be determining the transition temperature ($$Tc$$) of the high-Tc superconductor $$Bi_2 Sr_2 Ca_2 Cu_3 O_{10}$$ (aka $$Bi2223$$).