actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.

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what are the protection for DG set and why?

2 Answers  

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string efficient is 100% what is the voltage across the each disk?

1 Answers  

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When a 25kV line touches the train, will passenger get shock?

3 Answers  

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define excitaton voltage and excitation current?

2 Answers   Allied Group,

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the circuit having same properties in either direction is known as.......

2 Answers  

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Conventionally, capacitors are considered to generate reactive power and inductors to consume it,how??????

1 Answers  

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WHAT IS THE MINIMUM IR VALUE FOR CABLE CHARGING

4 Answers   Google,

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For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

1 Answers   MEIL,

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Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

0 Answers   Siemens,

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PIU how does work?

0 Answers  

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what is the function of choke and starter in a tube light?

2 Answers  

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