The input resistance of a silicon transistor is 
. Base current is changed by 40 
which results in a change in collector current by 2 
. This transistor is used as a common‐emitter amplifier with a load resistance of4 
The voltage gain of the amplifier is [2012]
Text Solution
Verified by ExpertsThe correct answer is:
A
Here,
Input resistance, 
Change in base current, 
Change in collector current, 
Load resistance, 
Current gain, 
Voltage gain of the amplifier is
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