It is generally desired that a transistor should have ___________ input impedance
A. Low
B. Very low
C. High
D. Very high
Answer: Option C
Solution (By Examveda Team)
Input impedance is like the resistance the amplifier presents to the signal source.We generally want a high input impedance for a transistor amplifier.
Think of it this way:
A high input impedance means the amplifier doesn't load down the signal source too much.
If the input impedance is low, it would draw a significant amount of current from the source, reducing the signal strength and potentially distorting it.
Therefore, a high input impedance allows the amplifier to receive the signal with minimal disturbance to the source.
This Question Belongs to Electrical Engineering >> Single Stage Transistor Amplifiers
43. The bandwidth of an amplifier is defined as:
a) The range of frequencies between the lower and upper cutoff frequencies
b) The range of frequencies where the gain is maximum
c) The range of frequencies where the gain is minimum
d) The range of frequencies where the phase shift is 180 degrees