WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.

5 Answers  

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what is different between 51N and 51G functions relay?

1 Answers  

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If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

4 Answers   NTPC,

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what is the material use in bus bar & why.

3 Answers  

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Pls say , how we calculate lux / sq.ft, which formula used for calculation

5 Answers  

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Why Phase to Neutral get spark

2 Answers  

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How to calculate incomer of a capacitor bank/feeder from its KVAR, AND how to calculate the copper busbar for rated incomer,like for 400A we calculate the 40x10 of aluminum busbar.

1 Answers  

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what is the minimum insulation resistance for HT AND LT motor ?

3 Answers  

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What is current & voltage ? Voltage perform at any load without current or not?

0 Answers  

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What is the Ideal Earth to Neutral Rating for Techonology Equipment like Routers, Switched, PABX, Computers etc etc?

2 Answers  

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why in generating station generation voltage is 11 kv

1 Answers   L&T, Usha Martin,

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Is it reuired to use house service barcket for 31/2 core 300 Sq.mm cable,if the distance between pole & shop is around 2 mtrs only or can I hang the cable with GI support in air? upto what size of cable GI serrvice btacket is necessary?

1 Answers   HAL,

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