enlarging small signals
reducing a signal
converting an a.c. signal into d.c. signal
all the above stated purposes
.
pulse amplifier
linear amplifier
non-linear amplifier
none of these
the input impedance
the gain of the circuit
the frequency of the amplified signal
the input impedance and the gain of the circuit
Increased gain
Reduced input impedance
Voltage gain changes throughout the input cycle
All the above stated facts
large power amplifiers
medium power amplifiers
low power amplifiers
both medium and low power amplifiers