AP EAMCET · PHYSICS · Semiconductors
In a transistor, the value of \(\alpha\) varies between \(\frac{20}{21}\) and \(\frac{100}{101}\). Then the value of \(\beta\) varies between
- A 1 and 10
- B 0.95 and 0.99
- C 20 and 100
- D 200 and 300
Answer & Solution
Correct Answer
(C) 20 and 100
Step-by-step Solution
Detailed explanation
Given, in a transistor current gain, \[ \alpha=\frac{20}{21} \text { and } \frac{100}{101} \] Now, common emitter transistor DC current gain, \(\beta=\frac{\alpha}{1-\alpha}\) Case I If \(\alpha=\frac{20}{21}\), then \(\beta=\frac{\frac{20}{21}}{1-\frac{20}{21}}=20\) Case II…
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