JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
The output characteristics of a transistor is shown in the figure. When \(V_{C E}\) is \(10\, V\) and \(I_{ C }=4.0\, mA ,\) then value of \(\beta_{ ac }\) is
- A \(130\)
- B \(125\)
- C \(150\)
- D \(100\)
Answer & Solution
Correct Answer
(C) \(150\)
Step-by-step Solution
Detailed explanation
\(\Delta I _{ B }=(30-20)=10 \mu A\) \(\Delta I _{ C }=(4.5-3) mA =1.5 mA\) \(\beta_{ x }=\frac{\Delta I _{ C }}{\Delta I _{ B }}=\frac{1.5 mA }{10 \mu A }=150\) \(\beta_{ ac }=150\)
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