what is the use of choke on tube light fitting
Answer Posted / tubelight
at the time of starting the current will be very high.
to limit the current choke is used. by mutual induction
choke opposes the rate of change of current. and reduces
the change in current flow.
the high voltage production is only due to the usage of
capacitor.
that only produces high voltage.
Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?
What are the transformer losses?
what is the max. acceptable leakage current in 33kv bus bar
Why neutral point is consider as zero potential?
1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.
In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?
What types of high speed CMOS circuits have you designed?
Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com
How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)
Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?
what is spadar bar .why I use in DC generator.
What is the previous name of Cox's Bazar
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.