What is the difference b/w chock and ballast?

2 Answers   Emami,

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what is the use of back emf?

1 Answers  

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how r charge carriers produced

0 Answers  

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How it can worked plc based electrical system And which type of software using.

0 Answers   ITC Infotech,

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what is the IS foe lightning arrester?

0 Answers  

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why there is a high voltage line in multiplication of 11?i.e.- -66kv,11,kv,22kv

4 Answers   Bhel,

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How much should be the specific gravity of a DG set battery Electrolyte.

2 Answers  

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what is the difference between ELCB and RCCB

5 Answers   Concorde, Hyundai,

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what is the difference between OSR and BUCHHOLZ relay of transformer?

1 Answers   Bhushan Power Steel,

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what is the location of lighting switch of battery room

1 Answers  

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define B types and C types in MCB ?

3 Answers   Bhel,

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why earthing is not required on transformer prymary winding side ???

13 Answers   Genpact,

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