Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Which of the following is true ?

Options:

A vacuum diode has two electrodes : Cathode and grid

A triode has three electrodes : Cathode, Anode and grid

A tetrode has more than three electrodes

All of the above are true.

Correct Answer:

A triode has three electrodes : Cathode, Anode and grid

Explanation:

A vacuum diode has two electrodes : Cathode and Anode.

A tetrode has exactly four electrodes.