9702/04/SP/22 · question 2 of 2 in this topic
A thin slice of conducting material has its faces PQRS and VWXY normal to a uniform magnetic field of flux density B. Electrons enter the slice at right-angles to face SRXY. A potential difference, the Hall voltage V_H, is produced between two faces of the slice.
Use letters from Fig. 6.1 to identify the two faces between which the Hall voltage is produced.
Using You must use the thing it names. An answer that reaches the right value another way may not score.
Your answer
Suggested time: 2 min
A thin slice of conducting material has faces PQRS and VWXY normal to a uniform magnetic field of flux density B; electrons enter the slice at right-angles to face SRXY.
The Hall voltage V_H is given by the expression V_H = BI/(ntq).
Use the letters in Fig. 6.1 to identify the distance t.
Using You must use the thing it names. An answer that reaches the right value another way may not score.
Your answer
Suggested time: 2 min
9702/04/SP/22Cambridge International AS & A Level Physics 9702 · Specimen 2022 · Paper 4 · sit the whole paper