The Hall Effect may be used to
1. Determine whether the semiconductor is p-type or n-type.
2. Determine the carrier concentration.
3. Calculate the mobility.
Which of the above statements are correct?

(a) 1 and 2 only (b) 1 and 3 only
(c) 2 and 3 only (d) 1, 2 and 3



Hall effect is used to
(i) Find p-type (or) n-type
(ii) Mobility
(iii) Carrier concentration