Question

In a common emitter amplifier, which one of the following statement is TRUE?

• A. In a mid-band region, the coupling capacitors and junction capacitances are short circuited.
• B. In a mid-band region, the coupling capacitors are open circuited and junction capacitances are short circuited.
• C. In a mid-band region, the coupling capacitors are short circuited and junction capacitances are open circuited.
• D. In a mid-band region, the coupling capacitors and junction capacitances are open circuited.

Hint:

Mid-band means the "sweet spot" of the amplifier:
Large external capacitors have already become short circuits.
Small parasitic internal capacitors have not yet started acting as shorts (they remain open circuits).

Answer 1

The Correct Option is C