Describe the secondary emission in pentode, Physics

Assignment Help:

Explain how suppressor grid eliminates effect of secondary emission in pentode

Ans: Suppressor grid is placed in between plate and screen grid. It's connected with the cathode and obtains the same potential as that of cathode. As suppressor grid is at negative potential with respect to plate, secondary electrons emitted from the plate are repelled back to plate or suppressed by it. Hence the effect of secondary emission is eliminated.

 


Related Discussions:- Describe the secondary emission in pentode

Flux, as flux = E.A and flux density is equal to flux/A then why A/A cannot...

as flux = E.A and flux density is equal to flux/A then why A/A cannot e cancelled ?

Correspondence limit, Correspondence limit (N. Bohr) The restriction at...

Correspondence limit (N. Bohr) The restriction at which a more general theory decrease to a more specialized theory while the conditions that the specialized theory needs are t

#PhysicsofVolleyball, Is there a way that you can gain potential energy and...

Is there a way that you can gain potential energy and release kentic energy in Volleyball?

Matlab, contact ball whit wall box

contact ball whit wall box

Derive superposition theorem, For the circuit shown in Figure, find, using ...

For the circuit shown in Figure, find, using the superposition theorem, (a) The current flowing in and the p.d. across the  resistor, (b) The current in the 8V battery and

Determine the forbidden gap of silicon, For silicon the forbidden gap is ...

For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.

Michelson morley experiment, Michelson Morley Experiment The Michelson...

Michelson Morley Experiment The Michelson-Morley experiment was performed within the year of 1887 through Albert Michelson and Edward Morley at what is presently Case Western

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd