A diode electron tube such as a valve tube
A)is used for amplification.
B)has a negatively charged anode.
C)is used to vary the primary voltage.
D)can be used for rectification.

Question

Quizplus · Accepted Answer

A diode electron tube such as a valve tube is commonly used for rectification, which allows the conversion of an AC signal to DC for power supply applications. It is not typically used for amplification or varying primary voltage. While some diode tubes may have negatively charged anodes, this is not a defining characteristic that applies to all diode tubes.

A Diode Electron Tube Such as a Valve Tube