In a incandescent bulb, if the glass is punctured, and then power is supplied, the tungsten filament blows up with a flash.Why?

2 Answers  

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why earth hole size is biggest in plug point?

13 Answers   RRB,

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what is busbar and its function/

2 Answers  

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how does commutator convert a.c to d.c?

0 Answers   NRSC National Remote Sensing Centre, RBC,

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Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

0 Answers  

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WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

0 Answers  

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1)What will happen when 240 VDC supply is connected to 240VAC supply(DC supply +ve is connected to phase of AC supply & DC supply is to neutral of AC supply). 2)Also what will happen when 240 VDC supply is connected to 240 VAC supply in reverse polarity as of Sr. No 1.

2 Answers  

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In Plug used in house,Why Earth of the plug more thicker & deeper?

8 Answers   L&T,

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What is an exciter and how does it work?

7 Answers   FCUK, Lotte Chemical Titan, TATA,

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what is interlocing and what is the purpose of this?

4 Answers   L&T,

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Wheather there exist any dc transformer

6 Answers  

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which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

0 Answers   TATA,

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