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Answer Posted / naveen gupta
The illumination of Tube is due to flow of electrons between its terminals, so as soon as you switch off supply electrons at one terminal needs a little time to be back to their original energy state. Thats why it glows for some time
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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
How many types oil using in transformer ? How many letars using in transformer..?
Which test will be more severe for VCB?
WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM
Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?
please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in
what is the role of energy meter in distribution system ?
explain wiring system
defination of lines
and gate circuit diagram,amplifier circuit diagram
i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors
why we use 630mm single core cable for transformer secondary side and why two neutral cable
tell me about eletrical contractor
why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
