Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
ELECTRIC DISCHARGE PHENOMENONThe flow of electricity through metallic solids, or through liquid metals is called Conduction.
The electricity flow through ionic solutions (such as NaCI) gives rise to the phenomenon called Electrolysis
The flow of electricity through gas (ionised) is called as "Electric Discharge".There are many types of electric discharges. For example, there is an electric discharge that is taking place inside a fluorescent tube, neon signs, etc. If we connect the resistor (R) to a power source of voltage (V) then the current (I) drawn by the resistance will be equal to I = V/R. (Ohm's Law).Since, the cross section is uniform, the resistance per unit length is also uniform. Hence potential distribution along the length is linearly sloping down from V at the end connected to positive and comes down to zero at the end connected to negative. Similarly, we can find out the potential distribution along the arc column. We know that it will be difficult to measure the potential distribution along the arc column, because of the very high temperatures (about 3000 to 10000 ° C). We will require special probes to withstand the temperatures and some special equipments and methods. Nevertheless scientists have done this work and they have found out a surprising result. The potential drops heavily near the anode and cathode. The regions over which there is a large voltage drop near the anode and cathode are called anode region and cathode region respectively. It is also surprising to note that the length of anode and cathode regions are very small of order of 0.01 mm and less. Since, the same current is flowing across the arc, the power that is developed near the anode and cathode are considerably higher, as the voltage drop near the anode and cathode are high. Pa = Va X I(power at Anode) PK = VK X I(power at Cathode)
Va= Anode drop VK = Cathode dropThe power or heat is responsible for the heating and subsequent melting of the electrodes.
Q. Positive Material Identification Testing? Any physical evaluation or a test of a material to confirm that the material which has been or will be placed into service is consi
Q. What is Air Intakes? Air is drawn from the atmosphere for a variety of process and equipment uses, including: • Combustion air (fired heaters, boilers, gas turbines, int
Merchants force diagram. State the assumptions made in development of such diagram.
(a) Specify, giving reasons whether the following systems are closed, open or isolated when in operation (i) Kitchen Refrigerator (ii) Ice-cream freezer (iii) Scooter Engi
WELDING PROCEDURE AND PERFORMANCE QUALIFICATION A total quality assurance scheme, embracing all aspects of manufacture would have necessarily made all attempts to ensure
Test Analysis: First new sand blasting machine prototype had arrived Asia. Installation of the machine had been carry out by external vendor. We test run the machi
give some basis of above topic
what is the difference between atomic structure and crystal structure
Centrifugal Filter and Screen Filter Cleaning : Oil may contain impurities. Since the oil passes through all the engine parts, the impurities may harm the parts and cause imprope
MODIFICATIONS REQUIRE FOR A ROAD CAR TO ENTER A HILL CLIMB
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd