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four parts of CRO:
1-crt
2-horizontal section
3-vertical section
4-power supply
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∙ 14y ago
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What are the parts and construction of DC geneartor?
The parts of dc generator are 1)armature coil 2)field magnet 3)split rings 4)brushes
What are the main parts of CRO?
1. Electron Gun 2. Focusing system 3. Deflection system 4. Fluorescent screen
Difference between 4 diodes and 2 diodes rectifier?
a 2 diode rectifier is a center tap rectifier an a 4 diode rectifier will be a bridge rectifier *********************************************************** A two-diode rectifier is not always a centre-tap rectifier. If the two diodes are connected to the same end of a transformer's secondary, one by its anode and one by its cathode, one will proved a positive voltage with respect to trhe other end of the winding and the other will provide a negative voltage. (But perhaps that isn't considered a two-diode rectifier - but a two single-diode ones.)
How much area will a 2 tube 4' fluorescent light fixture cover?
Depends on how high it is off the floor. Make sure you buy a T8 and not a T12. The T8 puts out more light and will operate at a lower temperture. On a normal 8' ceiling a 2 bulb T8 will cover around 36 square feet of space. If the room is pretty large then an 8 foot 2 bulb HO light is a much better choice.
What is the PEC requirements on the number of bends allowed in a conduit run?
4 quarter bend
Why is the cathode-ray tube in figure 4 connected to a vacuum pump?
A Cathode-ray tube is a vacuum that is used to get the air out. Cathode rays (electrons) cannot penetrate through any significant amount of air.
Parts of x-ray tube?
it contains mainly 1.cathode 2.anode 3.anode 4.filament 5.filter 6.belligerence window copper 8.tungsten filament 9.lead plate vaccum, x-ray
What is quenching in Geiger muller tube?
A small amount of vapours of a substance having low ionization potential, called as quenching gas, eg alcohol vapours, is added to gm tube, which discharges at cathode before the principle gas +ve ions which discharges at cathode in about 10^-4 seconds. So the quenching gas neutralizes itself and also the tube....
What is the purpose of vacuum in x ray tube?
Section II. PRODUCTION OF X-RAYS1-6. PARTS AND COMPONENTS OF THE DENTAL X-RAY MACHINEGeneral. The standard structural parts of the dental x-ray machine include a control panel (usually mounted behind a protective shield); a tube head, which houses the dental x-ray tube; and a flexible extension arm from which the tube head is suspended (see figure 1-1).The Control Panel. The components of the control panel are switches, dials, gauges, and lights. Basically, each control panel has the same function, the arrangement and location of these components will differ, depending upon the make, model, and year of construction of the dental x-ray unit. An operator's manual is issued with each unit. The operator should study it until he is familiar with its operational capability.The Extension Arm. The tube head is attached to the metal extension arm by means of a yoke that can revolve 360 degrees horizontally where it is connected. The construction of the yoke also provides vertical movement as well.The Tube Head. Inside the metal tube housing is the x-ray tube. The diagram in figure 1-2 represents a dental x-ray tube head and a dental x-ray tube. This tube emits radiation in the form of photons (photons will be discussed in Lesson 2) or x-rays. X-ray photons expose the film. In addition to exposing the film, it also exposes the patient to radiation. Unless certain protective measures are taken, the x-ray technician may also be exposed.Figure 1-1. A representation of a control panel, x-ray tube head, and extension arm.Figure 1-2. Dental x-ray tube head and dental x-ray tube.1-7. THREE STEP PROCESS OF X-RAY PRODUCTIONThe First Step. The first step in x-ray production is to turn on the machine. (If there is doubt on the part of the x-ray technician concerning the operation of the unit, reference should be made to the operator's manual.) When the unit is turned on, the filament of the cathode is heated by electrical current, causing it to emit electrons (see figure 1-3).The Second Step. For the second step of this three-step process, high voltage is passed across the x-ray tube. When this is done, the electrons or electron cloud from the filament are drawn across the opening toward the anode. The anode is made of tungsten and is sometimes called the tungsten target. Figure 1-4 depicts the electrons speeding toward the anode (tungsten target).The Third Step. The third and final step in this three-step process is the collision of electrons with the anode (tungsten target). This rapid deceleration of electrons produces x-rays, also referred to as photons. Figure 1-5 represents electrons striking the anode (tungsten target) and producing x-ray photons.Figure 1-3. Tube head with the filament of the cathode emitting electrons.Figure 1-4. Electrons speeding toward the anode (tungsten target).Figure 1-5. Electrons striking the anode (tungsten target) producing x-ray photons.
What are cathode rays made from?
Cathode rays are a stream of electrons originating from cathode and moving to an anode, when high voltage electric potential is applied to the electrodes sealed in a glass tube containing gas at low pressure.Cathode rays are stream of negativley charged electrons getting detached right from neutral molecues due to high voltage and driven right from cathode to anode.
What tune up parts are needed for a 1995 Saturn SL 4 cylinder?
The tube up parts needed for a 1995 Saturan SL 4 cylinder depends with your individual needs.
What is 4-major parts of microscope?
1. Mechanical Parts- refer to the parts that serve as the framework of the apparatus.2.Illuminating or optical parts- produce light entering he microscope3.Magnifyig Parts- enlarge or magnify the object
How do we express the the sum of a tube and four?
tube + 4.
What are the parts of a retort stand?
A retort stand is to hold a test tube/ boiling tube. 1. Turn the side knob( by the "t" on the retort stand) and release it. 2. Put the test tube/boiling tube in the test tube/boiling tube holder. 3. TIGHTEN the side knob ( if not the test tube/ boiling tube will drop). 4. Adjust the height of the retort stand by turining the most corner knob. (if you need to)
How many kids does Ray Ray want?
4
How tall is ray ray from mb?
i think 4" 11
How tall is Ray Lissner?
Ray Lissner is 5' 4".
