Interested to Buy Any Domain ? << Click Here >> for more details...
what happens when the supply frequency to the tube light is
reduced to 25Hz....?
- 5 Answers
- 8376 Views
- I also Faced
- E-Mail Answers
Answer Posted / mohandas
The choke is designed to generate a particular amount of high voltage when the starter contact breaks the supply to the choke. This high voltage discharges through the filament and in turn ionises the gas in the fluorescent tube. However when you reduce the frequency to 25Hz the high voltage produced by the choke will reduce considerably which may be insufficient to ionise the gas and the tube may not glow.
However if the frequency is reduced when the tube is already on and working the tube will continue to glow but with less luminosity.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
1.What will be stored in online ups EPROM IC?
how to determine Sq.mm size of finolex power cables.
how technical is calculated in 11kv line and lt line
Classify driling machines.
which protection used in power plant?
when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)
How many types of instrument cables are there?
what mean by analog ,digital,numerical meters and relays? say the example?
What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????
What are the main significances of root locus?
my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?
What is meant by cold loop test in instrument
1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?
how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.
