What serves as a grid in a magnetron?

What serves as a grid in a magnetron?
by

1 Answer

Answer :

A magnetic field.
by

Related questions

What is the typical frequency range about the center frequency of a tunable magnetron?

Description : What is the typical frequency range about the center frequency of a tunable magnetron?

Last Answer : . ±5 percent.

What is the effect on magnetron operation if the magnetic field strength is too high?

Description : What is the effect on magnetron operation if the magnetic field strength is too high?

Last Answer : The magnetron will not oscillate.

What is the frequency range of magnetron oscillators?

Description : What is the frequency range of magnetron oscillators?

Last Answer : 600-30,000 megahertz.

What is the typical frequency range about the center frequency of a tunable magnetron?

Description : What is the typical frequency range about the center frequency of a tunable magnetron?

Last Answer : ±5 percent.

What is the effect on magnetron operation if the magnetic field strength is too high?

Description : What is the effect on magnetron operation if the magnetic field strength is too high?

Last Answer : The magnetron will not oscillate.

What is the frequency range of magnetron oscillators?

Description : What is the frequency range of magnetron oscillators?

Last Answer : . 600-30,000 megahertz.

Name the procedure used to reduce excessive arcing in a magnetron?

Description : Name the procedure used to reduce excessive arcing in a magnetron?

Last Answer : Baking in.

Capacitive tuning by inserting a ring into the cavity slot of a magnetron is accomplished by what type of tuning mechanism?

Description : Capacitive tuning by inserting a ring into the cavity slot of a magnetron is accomplished by what type of tuning mechanism?

Last Answer : . A cookie-cutter tuner

Magnetron tuning by altering the surface-to-volume ratio of the hole portion of a hole-and-slot cavity is what type of tuning?

Description : Magnetron tuning by altering the surface-to-volume ratio of the hole portion of a hole-and-slot cavity is what type of tuning?

Last Answer : Inductive.

Why is the pi mode the most commonly used magnetron mode of operation

Description : Why is the pi mode the most commonly used magnetron mode of operation

Last Answer : Greater power output.

What are the electrons called that give up energy to the ac field in a magnetron?

Description : What are the electrons called that give up energy to the ac field in a magnetron?

Last Answer : Working electrons.

Why is the negative-resistance magnetron often operated with reduced filament voltage?

Description : Why is the negative-resistance magnetron often operated with reduced filament voltage?

Last Answer : To reduce the effects of filament bombardment.

What starts the oscillations in a negative-resistance magnetron?

Description : What starts the oscillations in a negative-resistance magnetron?

Last Answer : The application of the proper magnetic field.

What is the primary difference in construction between the basic magnetron and the negativeresistance magnetron?

Description : What is the primary difference in construction between the basic magnetron and the negativeresistance magnetron?

Last Answer : The negative-resistance magnetron has a split plate

A magnetron will produce oscillations when the electrons follow what type of path?

Description : A magnetron will produce oscillations when the electrons follow what type of path?

Last Answer : Circular.

What element in the magnetron causes the curved path of electron flow?

Description : What element in the magnetron causes the curved path of electron flow?

Last Answer : The permanent magnet.

What controls the output frequency of a magnetron?

Description : What controls the output frequency of a magnetron?

Last Answer : . The resonant cavities.

A cylindrical copper block with resonant cavities around the circumference is used as what component of a magnetron?

Description : A cylindrical copper block with resonant cavities around the circumference is used as what component of a magnetron?

Last Answer : Anode or plate

Once ionization has occurred in a thyratron, what control does the control grid have over the tube’s operation?

Description : Once ionization has occurred in a thyratron, what control does the control grid have over the tube’s operation?

Last Answer : None.

What effect does the shielding of the screen grid by the control grid have on plate current in beam-forming tetrodes?

Description : What effect does the shielding of the screen grid by the control grid have on plate current in beam-forming tetrodes?

Last Answer : By increasing the number of electrons that reach the plate, plate current is increased.

What is the major difference in grid construction between power pentodes and conventional pentodes?

Description : What is the major difference in grid construction between power pentodes and conventional pentodes?

Last Answer : Conventional pentodes have a staggered grid arrangement, while power pentodes have a shielded grid arrangement.

How does transit time affect the relationship of the grid voltage and the plate current at high frequencies?

Description : How does transit time affect the relationship of the grid voltage and the plate current at high frequencies?

Last Answer : Transit time causes the grid voltage and plate current to be out of phase

In a circuit using grid-leak biasing, the coupling capacitor (Cc) chargcharge path?

Description : In a circuit using grid-leak biasing, the coupling capacitor (Cc) chargcharge path?

Last Answer : rkg, the cathode to grid resistance.

Why the control grid of a triode amplifier is negatively biased?

Description : Why the control grid of a triode amplifier is negatively biased?

Last Answer : To prevent them from drawing grid current.

Why does the grid have a greater effect than the plate on electron flo

Description : Why does the grid have a greater effect than the plate on electron flo

Last Answer : Because it is closer to the cathode.

The suppressor grid is added to a tetrode to reduce what undesirable characteristic of tetrode operation?

Description : The suppressor grid is added to a tetrode to reduce what undesirable characteristic of tetrode operation?

Last Answer : Secondary emission.

What undesirable effect does the screen grid in a tetrode create?

Description : What undesirable effect does the screen grid in a tetrode create?

Last Answer : Secondary emission, and noise.

How does the addition of a screen grid in a tetrode reduce interelectrode capacitance?

Description : How does the addition of a screen grid in a tetrode reduce interelectrode capacitance?

Last Answer : The interelectrode capacitance (cpg) is divided between two series capacitances; thus, cpg is greatly reduced.

A tube has a transconductance of 800 mhos and a load resistor of 50 kohms. When control grid voltage varies by 6 volts, the plate voltage will vary by what amount?

Description : A tube has a transconductance of 800 mhos and a load resistor of 50 kohms. When control grid voltage varies by 6 volts, the plate voltage will vary by what amount?

Last Answer : 240 volts.

If the mu of a tube is 85 and the signal at the control grid is 4 volts ac, the plate voltage will vary by what amount?

Description : If the mu of a tube is 85 and the signal at the control grid is 4 volts ac, the plate voltage will vary by what amount?

Last Answer : 340 volts.

The plate voltage of a tube will vary 126 volts when a 3-volt ac signal is applied to the control grid. What is the gain of this tube?

Description : The plate voltage of a tube will vary 126 volts when a 3-volt ac signal is applied to the control grid. What is the gain of this tube?

Last Answer : 42.

When is a control-grid modulator used?

Description : When is a control-grid modulator used?

Last Answer : In cases when the use of a minimum of af modulator power is desired.

The base of a transistor serves a purpose similar to what element of the FET

Description : The base of a transistor serves a purpose similar to what element of the FET

Last Answer : Gate.

The folded waveguide in a bwo serves the same purpose as what component in a twt?

Description : The folded waveguide in a bwo serves the same purpose as what component in a twt?

Last Answer : Helix.

The magnet surrounding the body of a twt serves what purpose?

Description : The magnet surrounding the body of a twt serves what purpose?

Last Answer : Used to focus the electrons into a tight beam.

What serves as the cathode of a dry cell?

Description : What serves as the cathode of a dry cell?

Last Answer : The zinc container.

What serves as the cathode of a dry cell?

Description : What serves as the cathode of a dry cell?

Last Answer : The zinc container.

Which of the following types of HPA is not used in earth stations? A. TWT B. Transistor C. Klystron D. Magnetron

Description : Which of the following types of HPA is not used in earth stations? A. TWT B. Transistor C. Klystron D. Magnetron

Last Answer : D. Magnetron

What do you call a circuit that controls the magnetron output?A. Inverter B. Impeller C. Modulator D. Converter

Description : What do you call a circuit that controls the magnetron output? A. Inverter B. Impeller C. Modulator D. Converter

Last Answer : C. Modulator

Low-power radar uses A. RIMPATT B. TRAPATT C. Magnetron D. IMPATT

Description : Low-power radar uses A. RIMPATT B. TRAPATT C. Magnetron D. IMPATT

Last Answer : D. IMPATT

Draw the construction of magnetron and describe it’s working.

Description : Draw the construction of magnetron and describe it’s working.

Last Answer : Working/Operation: 1. Now assume RF oscillations are initiated due to some noise transient within the magnetron, the oscillations will be sustained by device operation. 2. Self- ... these favored electrons imparts enough energy to the RF oscillations so that they are sustained.  

With neat cross sectional constructional details,write effect of magnetic and electric field in magnetron

Description : With neat cross sectional constructional details,write effect of magnetic and electric field in magnetron

Last Answer : 1)When magnetic & electric fields act simultaneously upon the electron,its path can have any of a number of shapes dictated by the resistive strengths of the mutually perpendicular electric & ... happens because in practice the applied magnetic field is greatly in excess of the cutoff field.

Would a priority system for each households power help a power grid?

Description : Would a priority system for each households power help a power grid?

Last Answer : I’d make freezer and fridge number 1 and internet number 2. My bathroom has a window so it’s not as big of a deal.I also keep lots of LED flashlights handy just in case of power failure. Not perfect, but it works

What would be good or bad about having a twin off the grid?

Description : What would be good or bad about having a twin off the grid?

Last Answer : It would be akin to blaming smelly farts on the dog.

Why are most of the roads in America in a grid?

Description : Why are most of the roads in America in a grid?

Last Answer : answer:Medieval European cities were arranged in a circular fashion around a smaller original settlement, which was itself built in a rough circle around a defensible central position such as a castle ... and new settlements built from scratch over top of the corpses and graveyards of its victims.

Do you know anybody who lives "off the grid" and if so, how do they do it and where do they live?

Description : Do you know anybody who lives "off the grid" and if so, how do they do it and where do they live?

Last Answer : If I knew them, then they wouldn’t be off the grid, would they?

Internet in an off grid house?

Description : Internet in an off grid house?

Last Answer : answer:It depends on where you are. 3G is still faster than the 26.4k dialup I had in rural NH back in 2009, but really not good for streaming; it loads pages fast enough to be good for normal surfing, ... , so I won't go into those except to say that they may exist, and possibly be where you are.

What is the difference between SO grid references and SN grid references?

Description : What is the difference between SO grid references and SN grid references?

Last Answer : The ordnance survey splits the UK up into 100km squares. SN covers south west Wales and SO covers south east Wales and part of England (mainly Herefordshire if memory serves).

What will happen to US Nuclear Power Plants when a massive solar flare burns out the entire US electrical power grid?

Description : What will happen to US Nuclear Power Plants when a massive solar flare burns out the entire US electrical power grid?

Last Answer : I think they are supposed to have backup generators, enough to keep cooling fluids circulating, including in spent-fuel pools. Hopefully the control systems of the backup power supply are hardened to solar ... . Just don't send a tsunami through the backup power switching rooms on top of that.

How is a cattle grid like this still effective?

Description : How is a cattle grid like this still effective?

Last Answer : Looks fairly recent (the cut in the road is still sharp and unworn, and the grate itself shows no rust). Maybe the fence is coming next.