Current gain in common base configuration is less than 1 because

I_e < I_b

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I_b < I_e

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I_c < I_e

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I_e < I_c

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Solution

The correct option is C I_c < I_e
$\propto= \frac{I_{c}}{I_{e}} < 1$ or $I_{c} < I_{e}$

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For a common base configuration of PNP transistor, the gain $(α)$ is 0.98, then current gain of common emitter configuration will be

P N P

\frac{^{l_{C}}}{l_{E}} = 0.98

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