The value of `beta` of a transistor is 19. The value of `alpha` will be

Options

A. 0.93
B. 0.98
C. 0.99
D. 0.95

Answer

To find the value of alpha (α) from the given value of beta (β) for a transistor, we can use the relationship between alpha and beta. The relationship is defined as follows:

\[ \alpha = \frac{\beta}{1 + \beta} \]

Given that the value of β is 19, we can substitute this value into the equation.

### Step 1: Substitute the value of beta into the formula
\[ \alpha = \frac{19}{1 + 19} \]

### Step 2: Simplify the denominator
\[ 1 + 19 = 20 \]

### Step 3: Substitute the simplified denominator back into the equation
\[ \alpha = \frac{19}{20} \]

### Step 4: Perform the division
\[ \alpha = 0.95 \]

Thus, the value of alpha (α) is 0.95.

### Final Answer:
\[ \alpha = 0.95 \]

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