State what the symbol $n$ stands for.
The symbol $t$ is the length of one side of the slice. Use the letters in Fig. 9.1 to identify $t$.
Usually, the Hall voltage from a slice of metal is very small. For a slice with the same dimensions carrying the same current and in the same magnetic flux density, the Hall voltage from a semiconductor is much larger. Suggest and explain why.
In some semiconducting materials, electrons are mainly responsible for conduction. In other semiconducting materials, holes are mainly responsible for conduction. Suggest and explain what difference, if any, conduction by electrons or by holes will make to the Hall voltage.
In some semiconducting materials, electrons are the main charge carriers. In other semiconducting materials, holes are the main charge carriers. Suggest and explain whether conduction by electrons or by holes has any effect on the Hall voltage.