Question

In analog circuits, a coupling capacitor is used to connect two circuits such that only the AC signal from the first circuit can pass through to the next while DC is blocked.

(a) True

(b) False

I had been asked this question in quiz.

Query is from CE Amplifier with an Emitter Resistance topic in section Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

Answer 1

The correct option is (a) True

To elaborate: A coupling capacitor allows ac signal to pass from one circuit to the other. This technique helps to isolate the DC bias settings of the two coupled circuits.