Resistivity of a semiconductor depends on

Options

A. size
B. type of atoms
C. length
D. size and type of atom

Answer

To determine what the resistivity of a semiconductor depends on, we can follow these steps:

### Step 1: Understand Resistivity
Resistivity is an intrinsic property of a material. This means that it is a characteristic of the material itself and does not change based on the material's shape, size, or length.

**Hint:** Remember that intrinsic properties are inherent to the material and do not vary with external factors.

### Step 2: Identify Factors Affecting Resistivity
Since resistivity is intrinsic, we need to consider what factors can influence it. The resistivity of a semiconductor is primarily affected by the type of atoms present in the material. Different atoms will have different electronic structures, which affects how easily charge carriers can move through the material.

**Hint:** Think about how different elements have different numbers of valence electrons and how this impacts conductivity.

### Step 3: Eliminate Irrelevant Options
Given that resistivity does not depend on shape, size, or length, we can eliminate options that suggest these factors affect resistivity. Therefore, options related to the physical dimensions of the semiconductor can be disregarded.

**Hint:** Focus on the properties that are intrinsic to the material rather than those that change with physical alterations.

### Step 4: Conclude the Correct Answer
The only factor that remains relevant to the resistivity of a semiconductor is the type of atoms that make up the semiconductor. Thus, the correct conclusion is that the resistivity of a semiconductor depends on the type of atoms.

**Hint:** Consider how the atomic structure and bonding influence the electrical properties of materials.

### Final Answer
The resistivity of a semiconductor depends on the type of atoms present in the material.

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