n type semicondluctor is obtained by adding ________impurity to pure semiconductor

Options

A. Trivalent
B. Tetravalent
C. pentavalent
D. all of these

Explanation

To solve the question "n-type semiconductor is obtained by adding ________ impurity to pure semiconductor," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Doping**: Doping is the process of adding impurities to a pure semiconductor to change its electrical properties.

2. **Identify the Type of Semiconductor**: We need to determine what type of semiconductor we are dealing with. In this case, we are focusing on n-type semiconductors.

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