In an n-type semiconductor, the fermi energy level lies

Options

A. in the forbidden energy gap nearer to the conduction band
B. in the forbidden energy gap nearer to the valence band
C. in the middle of forbidden energy gap
D. outside the forbidden energy gap

Answer

### Step-by-Step Solution:

1. **Understanding Semiconductors**:
- A semiconductor has two main energy bands: the conduction band (CB) and the valence band (VB). The energy gap between these two bands is known as the forbidden energy gap.

2. **Identifying n-type Semiconductors**:
- In n-type semiconductors, extra electrons are introduced into the material, typically through doping with elements that have more valence electrons than the semiconductor itself (like phosphorus in silicon). These extra electrons become the majority charge carriers.

3. **Fermi Energy Level in Semiconductors**:
- The Fermi energy level (E_F) represents the energy level at which the probability of finding an electron is 50%. In intrinsic (pure) semiconductors, the Fermi level lies approximately in the middle of the forbidden energy gap.

4. **Position of Fermi Level in n-type Semiconductors**:
- Since n-type semiconductors have an abundance of electrons, the Fermi level shifts closer to the conduction band. This is because the presence of extra electrons increases the probability of finding an electron in the conduction band.

5. **Conclusion**:
- Therefore, in an n-type semiconductor, the Fermi energy level lies in the forbidden energy gap, specifically nearer to the conduction band.

### Final Answer:
The Fermi energy level in an n-type semiconductor lies nearer to the conduction band.