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NEET 2000 (AIPMT) · Junction Transistor

Junction Transistor question from NEET 2000 (AIPMT)

Q124NEET 2000 · AIPMTEasy

Junction Transistor

The correct relation for $\alpha, \beta$ for a transistor

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Answer: (b)

$I_B = I_E - I_C$ , so $\beta = \frac{I_C}{I_E - I_C}$
Divide top and bottom by $I_E$ : $\beta = \frac{\alpha}{1-\alpha}$
So the answer is (b).

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