Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?

0 Answers  

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why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers   JK Cement,

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why use generator Earthing/Graunding.

4 Answers  

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WHY WE USE 4-20mA

5 Answers   Coca Cola,

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how to improve power factor correction?

3 Answers  

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What is the capacitance values of 132,220,400 & 765 kV current transformer

0 Answers  

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how to apply b license to c license in tneb

0 Answers   Billroth Hospitals,

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kindly tell me how the load on generator increase by just increasing the fuel of prime mover, as if for exampple 20 MW gen set is synchronized the load ramps from zero to 20 MW gradully and during this procress only fuel of prime mover increases. Which thing determines the load on generator with respect to fuel

4 Answers   Birla,

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what is power factor

7 Answers   Eskom,

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what is the major difference between LIBBP & HIBBP.. which one is most preferable..

0 Answers   ABB,

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what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

1 Answers   NCC,

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why we are used armed coble for wiring of 3phase motor?

3 Answers   AluChem,

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