TS EAMCET · Physics · Semiconductors
A transistor having a \(\beta\) equal to 80 has a change in base current of \(250 \mu \mathrm{A}\), then the change in collector current is
- A \(20,000 \mathrm{~mA}\)
- B \(200 \mathrm{~mA}\)
- C \(2000 \mathrm{~mA}\)
- D \(20 \mathrm{~mA}\)
Answer & Solution
Correct Answer
(D) \(20 \mathrm{~mA}\)
Step-by-step Solution
Detailed explanation
\(\beta=\left(\frac{\Delta i_C}{\Delta i_B}\right)\) \(80=\frac{\Delta i_C}{250 \times 10^{-6}}\) \(\Delta i_C=80 \times 250 \times 10^{-6}\) \(\Delta i_C=20000 \times 10^{-6}\) \(=20 \times 10^{-3}=20 \mathrm{~mA}\)
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