TS EAMCET · Physics · Semiconductors
The current gain of a transistor is 0.98 . If the transistor is used in a common emitter arrangement what would be the change in collector current corresponding to a change of \(0.5 \mathrm{~mA}\) in the base current?
- A \(24.5 \mathrm{~mA}\)
- B \(47.5 \mathrm{~mA}\)
- C \(32.5 \mathrm{~mA}\)
- D \(28.5 \mathrm{~mA}\)
Answer & Solution
Correct Answer
(A) \(24.5 \mathrm{~mA}\)
Step-by-step Solution
Detailed explanation
Current gain of a transistor \(=0.98\) Since it is less thanl, so it is the current gain in common base configuration i.e., \(\alpha=0.98\) So, current gain in common emitter configuration, \(\beta=\frac{\alpha}{1-\alpha}=\frac{0.98}{1-0.98}=\frac{0.98}{0.02}=49\) Now,…
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