Answer / vilas

Choke is used for to reduce the low frequency signals that means it bloks that signal

Answer / jaya senthil nathan

choke is used to step up the voltage
starter is to seperate the initial voltage into two for two
ends of the tube light ,....

when giving a supply to wounded coil it will get magnetised, but the same is not if it is not wounded on a core..and it is getiing short....why.......

3 Answers  

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In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

1 Answers  

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draw the block diagram of fire alarm?

0 Answers  

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What happen if two protection core (3p) of VT in LAVT are 11kv/root3, 110v/root3 and one protection core (3p) is 11kv/root3, 110v/3

1 Answers  

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How to calculate kva? what is the formula.

21 Answers   MSIL, UltraTech, Watt, Welding Aids,

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how can we make cable shedule for controll wiring ? which details must be required for it.?

0 Answers   L&T,

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what use can we make of 3rd harmonic component

5 Answers   Bhel, General Motors GM,

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In which type of circuit short circuit is dangerous in parallel or series and why?

6 Answers  

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inductance and capacitance may result in periodic reversals of the direction of energy flow,how???

1 Answers  

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why neutral used in three phase motor connection?

3 Answers   BEL,

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Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

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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?

0 Answers  

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