If the value of the common base current gain (α) is 0.98, then the value of the common collector current gain (γ) is ___________.

Correct option is D

$$\text{Common base current gain, } \alpha = 0.98 \\[6pt]\text{The relationship between common base current gain } (\alpha) \text{ and common collector current gain } (\gamma) \text{ is:} \\[8pt]\gamma = \frac{1}{1 - \alpha} \\[6pt]\gamma = \frac{1}{1 - 0.98} = \frac{1}{0.02} = 50 \\[10pt]\textbf{Additional Information:} \\[6pt]\text{Common emitter current gain } (\beta): \quad \beta = \frac{I_C}{I_B} \\[6pt]\text{Common base current gain } (\alpha): \quad \alpha = \frac{I_C}{I_E} \\[6pt]\text{Common collector current gain } (\gamma): \quad \gamma = \frac{I_E}{I_B} \\[10pt]\textbf{Where,} \\[4pt]I_C = \text{Collector current} \\[4pt]I_B = \text{Base current} \\[4pt]I_E = \text{Emitter current}$$​​