Question

When a triode is used as an amplifier the phase difference between the input signal voltage and output is

• A. Zero
• B. $\pi$
• C. $\frac{\pi }{2}$
• D. $\frac{\pi }{3}$

Answer 1

The correct option is B $\pi$

A triode is an electronic amplifying tube consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate(anode).

When a triode is used as an amplifier then it creates the phase difference of 180 degree or $\pi$