COMEDK · Physics · 30. Semiconductors
A transistor is connected in \(\mathrm{CE}\) configuration. The collector supply is \(10 \mathrm{~V}\) and the voltage drop across a resistor of \(1000 \Omega\) in the collector circuit is \(0.5 \mathrm{~V}\). If the current gain factor is 0.96 , then the base current is
- A \(25 \mu \mathrm{A}\)
- B \(20.8 \mu \mathrm{A}\)
- C \(22.5 \mu \mathrm{A}\)
- D \(15 \mu \mathrm{A}\)
Answer & Solution
Correct Answer
(B) \(20.8 \mu \mathrm{A}\)
Step-by-step Solution
Detailed explanation
Current gain factor, \(\alpha=0.96\) \(R=1000 \Omega\), Voltage drop across collector resistor \(=0.5 \mathrm{~V}\) \(\therefore \quad \beta=\frac{\alpha}{1-\alpha}=\frac{0.96}{1-0.96}=24\) \(\therefore\) Collector current,…
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