1. The net charge on an n-type and p- type semiconductors are
2. A semiconductor has an electron concentration of 6 × 1022 per m3 and hole concentration of 8.5 × 109 per m3 .Then it is
3. Hole is
4. What happens to resistance of an intrinsic semiconductor when heated
5. The conductivity of a semiconductor increases with increase in temperature because
6. In a p-type silicon, which of the following statement is true :
7. A P-type semiconductor can be obtained by adding
8. In an n-type silicon, which of the following statement is true :
9. Extra energy level develped in n-type and p-type semiconductors known as
10. When n -type or p-type semiconductor is formed then effective band gap