Explain diode valve, Physics

Assignment Help:

Working: When plate potential (Vp) is positive, plate current ( Ip) flows in the circuit (because some emitted electrons reach to plate). If +  Vp enhances Ip  also increases and finally becomes maximum (saturation).

 

Space charge: If  Vpis zero /negative, then electrons collecting around the plate as a cloud which is known as space charge. Space charge reduces the emission of electrons from the cathode.

 

Characteristic curve of a diode: A diagram represents the variation of  Ip with  Vp at a given filament current ( If) is called as characteristic curve.

 

1131_22.png


Related Discussions:- Explain diode valve

Motion, the average speed of an object over a given time duration is 6 m/s....

the average speed of an object over a given time duration is 6 m/s. If it travels first half of the duration with a constant speed 4 m/s, its speed during the next half duration is

Electromagnetism, #quest. While music is on you will try to oppose the two ...

#quest. While music is on you will try to oppose the two ear phone pieces to attract.

An experiment with two spikes, An experiment with two spikes Use the dr...

An experiment with two spikes Use the drill for a rotation machine as in the above experiment. Unite two spikes by attaching the point end of every to the end of a 15 cm length

Explain parts of thermionic emitters, There are two parts of Thermionic emi...

There are two parts of Thermionic emitters:- A) Directly heated emitter (i) Cathode is directly heated by passing current. (ii) Thermionic current is less. (iii) Ener

Equatorial line and neutral point, Equatorial Line and Neutral point: ...

Equatorial Line and Neutral point: Equatorial Line: The imaginary line joining the centre of mass  and perpendicular to the line joining the poles of a bar magnet is called th

An aquarium for larger water animals, An aquarium for larger water animals ...

An aquarium for larger water animals A glass aquarium 50 cm by 25 cm is of useful size. Old accumulator cells are suitable, but the glass is not very obvious.  To prepare l

Electric intensity due to charged conducting spherical shall, Write a short...

Write a short note on different kinds of capacitors. Applying Gauss's law derive the mathematical expression for electric intensity due to a charged conducting spherical shall

Find t in terms of d and v, An object that is moving in a straight line wit...

An object that is moving in a straight line with speed v covers a distance, d = vt, in time t. Rewrite the equation to find t in terms of d and v. How long does it take a plane tha

Find the minimum wavelength of a bremsstrahlung photon, a. Consider an x-ra...

a. Consider an x-ray machine with a step-up transformer consisting of a primary coil of 100 turns and a secondary one with 50000 turns. If the voltage applied across the primary co

Kerr effect, Kerr effect (J. Kerr; 1875): The ability of certain subst...

Kerr effect (J. Kerr; 1875): The ability of certain substances to refract light waves differently whose vibrations are in distinct directions while the substance is placed wit

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