Semiconducting Devices Question 93

Question: If a = 0.98 and current through emitter ie = 20 mA, the value of b is

[DPMT 2002]

Options:

A) 4.9

B) 49

C) 96

D) 9.6

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Answer:

Correct Answer: B

Solution:

$ \beta =\frac{\alpha }{1-\alpha }=\frac{0.98}{1-0.98} $ =49.



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