Answer / wareagle

If you are buying a fixture with an electronic ballast, the
losses are close to zero.

Answer / k.prakashchandra

Equal to I^2xR ( resistance of ballast )

In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?

2 Answers  

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what is earthing transformer? draw the winding dia.of earthing transformer.

0 Answers  

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derive the formula of amp hours is calculated for 12v battery.where no. of plates is given

1 Answers  

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What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

0 Answers  

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Which type of moter is used in trains, what is the ratting of supply used explain Working principal?

2 Answers  

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Befor synchronissation of Generator what test to be carried out.pl.specify with reason.

3 Answers   Kanoria,

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what is Micrologic 6.0A advantages over Micrologic 2.0A

1 Answers  

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what is meant by lagging & leading current

1 Answers   TATA,

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What is Surge arrest? How it work?

4 Answers  

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In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

0 Answers   Aegis,

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Explain the working principle of Synchronous Generator and Assynchronous generator?

11 Answers   TATA,

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what is current

8 Answers   NTPC,

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