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QAIPM-2012-Ph-1668: NEET 2012 Physics - Class 12 AIPM-2012-Ph-1668 Solution: The input resistance of a silicon transistor is \(100 \). Base…
The input resistance of a silicon transistor is . Base current is changed by which results in a change in collector current by 2 mA. This transistor is used as a common emitter amplifier with a load resistance of 4 k. The voltage gain of the amplifier is 2000 3000 4000 1000
Multiple Choice Options
- A 2000
- B 3000
- C 4000
- D 1000
Step-by-Step Verified Solution
Current gain ( _ ) :
_ = _ I C _ I B
= 2 _ 10 _ 3 40 _ 10 _ 6 = 50
Voltage gain of the amplifier is
A V = _ R L R i
= 50 _ 4 _ 10 3 100 = 2000