In a given transistor amplifier, ๐ ๐ถ = 2.2๐ฮฉ ๐๐๐ ๐๐โฒ = 20ฮฉ, ๐กโ๐ ๐ฃ๐๐๐ก๐๐๐ ๐๐๐๐ ๐๐ (a) 2.2 (b) 110 (c) 20 (d) 44
Question
Solution 1
The voltage gain (Av) of a common emitter amplifier is given by the formula:
Av = -RC/re'
Where: RC is the collector resistance re' is the internal emitter resistance
Given that RC = 2.2kฮฉ = 2200ฮฉ and re' = 20ฮฉ, we can substitute these values into the formula:
Av = -2200/20 = -110
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