CBSE class 12th Physics -Triode

In this article you will get the clue that from where and how the questions are being framed from the topic Triode
The experts of jagranjosh.com have full confidence that you will not miss any of the questions in the board exam as well as in competitive exams from this chapter if you will keep the following terms / question in your mind while studying.

Metals have hedge number of free electrons

Methods to take out the electrons are

Field emission

Photoelectric effects

Secondary emission

Thermionic emission (addition effect)

On which method triode works

Differences among all the methods

Is triode means vacuum tube?

Triode works as

• Amplifier
• Modulator
• Demodulator
• Oscillator

By triode which problem gets resolved?

Which electrode is known as main controlling electrode and why?

Relation between plate potential, grid potential and plate current

Relation between amplification factor of triode, grid potential and plate potential when plate current is zero

Anode characteristic curve (curve between plate potential and plate current when grid potential is constant)

Mutual characteristic curve (curve between grid potential and plate current when plate potential is constant)

Graphic representation and calculation of resistance of both the cure

What is load line and equation of load line?

What is operating point?

Input voltage is grid voltage (true / false)

Amplification factor, its value and dimensional unit

Relation between amplification factor, plate resistance and mutual conductance

Term which has been given to the slope of mutual characteristic curve

What is mutual conductance and its unit too

Relation between plate current and mutual conductance

How triode is used in inverter

Triode when used as amplifier

• Voltage amplification and its formula
•  Relation between load line and voltage amplification

Sample questions:

Q1. Net voltage gain when five triode are arrange in

• series  
• parallel

The main difference between triode and step up transformer

Q2. Voltage amplification for triode is 30 with 50 kΩ and 34 with 85 kΩ resistance.

      Determine the value of constants like

• Amplification factor
• Mutual conductance

Visit continuously in CBSE section of the site jagranjosh.com to get this type of articles