Working of crt heater element is energized by alternating current to obtain high emission of electron from cathode.Control grid is bised negative with respect to cathode it controls the density of electron beam to focus the electron beam on the screen focusing anode is used.The focusing anode opperate at a potential of twelve hundred (1200 v) and accelerating anode at 2000 v to accelerate.
29/1/2017 cbse sample papers for class 12 biology solved 2016 set 1 section a 1.Cross hybridisation among the selected parents during any plant breeding programme is meant to be a tedious and a time consuming process.
Chat OnlineWith the help of a labeled diagram explain in brief the working of a cyclotron.3 q.20.Calculate the binding energy per nucleon (in mev) for and.Comment on the difference of these binding energies and its significance in relation to.
Chat OnlineLarge electrostatic precipitators are used industrially to remove over 99% of the particles from stack gas emissions associated with the burning of coal and oil.Home precipitators, often in conjunction with the home heating and air conditioning system, are very .
Chat Online12.With the help of a diagram, explain the principle of a device which changes a low voltage into a high voltage but does not violate the law of conservation of energy.Give any one reason why the device may not be 100% efficient.13.In a double slit experiment.
Chat Online2.A) explain the principle of working of an electrostatic precipitators? 8 m b) what are the advantages and disadvantages of wet collection devices? 8 m 3.A) what are the various adsorbents that are generally used water treatment? what is their.
Chat Online31/3/2003 dan a.Hays, a senior fellow at the xerox corporation's wilson center for research and technology, explains.The xerographic process, which was invented by chester carlson in 1938 and developed and commercialized by the xerox corporation, .
Chat OnlinePdf | the electrostatic precipitator system of the lignite fired 350 mwe unit b1 of thermal power plant kostolac b has been modernized during 2014.The results of complex in site measurements, performed in the frame of performance control test at the beginning.
Chat OnlineWith the help of neat diagram, explain the construction of current transformer.Asked sep 18, 2018 by anonymous1 | 19 views 1 answer.With the help of a neat circuit diagram explain the working principle of digital to analog converters.(dac) asked sep 13 by.
Chat Online1/2/2001 the human-end of making a copy begins with a few basic steps: open the copier lid place the document to be photocopied face-down on the glass select the options you want (number of pages, enlargements, lighter/darker) press the start button what happens inside the copier at .
Chat OnlineWith the help of a ray diagram explain the term critical angle.4.For a ray of light going from a denser medium to air, what is the value of refractive index of the medium if the critical angle is equal to 450.(5) or 1.List four.
Chat OnlineI.With the help of neat labelled circuit diagram explain the working of half wave rectifier using semiconductor diode.Draw the input and output waveforms.Ii.A cell balances against a length of 200 cm on a potentiometer wire, when.
Chat Online(a) state the working of a.C.Generator with the help of a labelled diagram.(b) the coil of an a.C.Generator having n turns, each of area a, is rotated with a constant angular speed .Deduce an expression for alternating emf generated in the coil.
Chat OnlineExplain, with the help of a labelled diagram, its working.(b) describe briefly any two energy losses, giving the reasons for their occurrence in actual transformers.46 a circular coil of closely wound n turns and radius r carries a.
Chat Online101 science (52) biology science paper - 3 aims: 1.4.To acquire the knowledge of the economic importance of plants and animals.Human welfare.2.5.To develop an understanding of the inter-relationship.
Chat Online2019/10/17 in electrostatic activities, protons are never transferred (which rules out choices a and e).Electrons are not positively charged (ruling out choice e).Choices b, c and d are all true and explain the essential nature of the conduction.
Chat Online2018/12/31 there are only two different sorts of known charge which scientists have labelled as positive and negative.These names were chosen historically to indicate that they were somehow opposites of each other, to help emphasise.
Chat OnlineFact sheet: air pollution emission control devices for stationary sources introduction stationary sources of air pollution emissions, such as power plants, steel mills, smelters, cement plants, refineries, and other industrial.
Chat OnlineStart studying chemistry unit 1 resit past paper questions.Learn vocabulary, terms, and more with flashcards, games, and other study tools.January 2012 the metal lead reacts with warm dilute nitric acid to produce lead(ii.
Chat OnlineIn this work, the dust removal performance of a two-stage electrostatic precipitator and its influencing factors are studied.A numerical model is developed to describe the physical processes in the two-stage esp, including airflow, corona discharge, particle charging.
Chat OnlineCoal and ash handling --vanita thakkarvanita thakkar associateassociate professorprofessor mechanical engineering department,mechanical engineering department, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Chat OnlinePhysics (theory) (three hours) answer all questions in part i and six questions from part ii, choosing two questions from each of the sections a, b and c.All working, including rough work, should be done on the same sheet as, and adjacent to, the rest of the.
Chat Online3.With the help of a ray diagram explain the term critical angle.4.For a ray of light going from a denser medium to air, what is the value of refractive index of the medium if the critical angle is equal to 450.(5) or 1.List four common defects of vision that can be.
Chat OnlineQ3 explain (working) principle and advantages of electro static precipitators with diagram.Q4 explain (working) principle and advantages of fabric filters with diagram.Q5 explain (working) principle and advantages of hybrid system with diagram q6 explain the terms adsorption, combustion, absorption, condensation process occurs to control the air pollution.
Chat OnlineUses of static electricity the electrostatic precipitator electrostatic precipitators are used in industry for environmental protection.In factories, power plants and chemical plants smoke and other exhaust have to be treated to remove dust particles and other.
Chat OnlineFact sheet: air pollution emission control devices for stationary sources introduction stationary sources of air pollution emissions, such as power plants, steel mills, smelters, cement plants, refineries, and other industrial processes, release contaminants into.
Chat OnlineLearn cbse.In learn cbse.In 187 [xii physics] 29.With the help of circuit diagram of an npn transister in common emitter mode, explain its use as an amplifier.Drawn the output versus input voltage curve and mark region in which the transister is used a (i.
Chat OnlineAir pollution - causes, effects and control measures air pollution - air pollution may be defined as the presence of one or more contaminants like dust, mist, smoke and colour in the atmosphere that are injurious human beings, plants and animals.
Chat Onlinesynchronous speed is the speed of rotation of the magnetic field in a rotary machine, and it depends upon the frequency and number poles of the machine.The induction motor always runs at speed less than its synchronous .
Chat Onlinevan de graaff generators are described as "constant current" electrostatic devices.When you put a load on a van de graaff generator, the current (amperage) remains the same.It's the voltage that varies with the load.In the case of the van de graaff .
Chat Onlineelectrically insulated and so that the oil will also help cool down the tube during operation.The cooling of the oil is sometimes assisted with a cooling fan.15.This diagram demonstrates the x-ray tube with all its components labeled clearly.Note that the anode is attached to the rotor by a small diameter stem.The rotor is.
Chat Onlinelabelled diagram 1 mark for partially labelled diagram no marks for unlabeled.High voltage supplies for electrostatic precipitators, x-ray machines. mark for each of any four applications.Explain the operation of rc triggering circuit with neat diagram.Ans:.
Chat OnlineGcse bitesize: electrostatic precipitators.Phase diagram - 28 images - using attached phase diagram for cu zn system c chegg, chapter 9 phase diagrams phase changes boundless physics,.The illustrate explain testing a working .
Chat Onlineincineration produces fly ash and bottom ash just as is the case when coal is combusted.The total amount of ash produced by municipal solid waste incineration ranges from 4 to 10% by volume and 1520% by weight of the original quantity of waste, .
Chat OnlineThe forces of attraction between charged particles caused by static electricity are used in: air pollution control, xerography, automobile painting, air filters (particularly electrostatic precipitators), photocopiers, paint sprayers, theaters, flooring in operating theaters, powder testing, printers, static bonding, and aircraft.
Chat Onlinein electrostatic activities, protons are never transferred (which rules out choices a and e).Electrons are not positively charged (ruling out choice e).Choices b, c and d are all true and explain the essential nature of the .
Chat Onlinedrawing a force diagram a force diagram is simply a diagram showing all the forces acting on an object, the force's direction and its magnitude.It is a simplification of the picture that shows just the forces.In the example .
Chat Onlineassuming that all of the uranium and thorium would be emitted into the fly ash and that the electrostatic precipitators would capture and remove 99% of the fly ash, the emissions of radioactive trace elements to the atmosphere from a 1000 mw coal-fired power plant would be 52 kg/yr of uranium and 128 kg/yr of thorium.
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