In certain circuit, if the transistor has a collector current of 10 mA and base current of 50 uA, then the current gain of the transistor is:
Correct answer: D. 200
- A. 250
- B. 100
- C. 150
- D. 200
Explanation
Explanation: Collector currect: Ic = 10mA = 10 × 10-3 A Base current = IB = 50μA = 50 × 10-6 A Current gain = β = ?As we know that, β = Ic / IB = 10 × 10-3 / 50 × 10-6 = 0.2 × 10³ β = 200
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About PN Junction
A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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