For a transistor, the value of B = 99, then the value of` alpha ` is

Options

A. 99
B. 9.9
C. 0.99
D. 100

Answer

To find the value of alpha (α) given the value of beta (β) for a transistor, we can use the relationship between alpha and beta. Here are the steps to solve the problem:

### Step-by-Step Solution:

1. **Understand the Relationship**:
The relationship between alpha (α) and beta (β) is given by the formula:
\[ \alpha = \frac{\beta}{1 + \beta} \]

2. **Substitute the Value of Beta**:
Given that β = 99, we can substitute this value into the formula:
\[ \alpha = \frac{99}{1 + 99} \]

3. **Calculate the Denominator**:
First, calculate the denominator:
\[ 1 + 99 = 100 \]

4. **Perform the Division**:
Now, substitute the denominator back into the equation:
\[ \alpha = \frac{99}{100} \]

5. **Simplify the Result**:
This simplifies to:
\[ \alpha = 0.99 \]

### Final Answer:
Thus, the value of alpha (α) is **0.99**.