What type amplifier uses direct coupling and amplifies signals down to 0 Hz?
A) transformer coupled amplifier
B) dc amplifier
C) ac amplifier
D) impedance coupled amplifier

Question

Quizplus · Accepted Answer

A dc amplifier uses direct coupling to transfer the input signal to the output with no coupling capacitors or transformers in the signal path. This allows for amplification of signals down to 0 Hz, as there is no frequency limitation imposed by capacitors or transformers.

What Type Amplifier Uses Direct Coupling and Amplifies Signals Down